Signs Your Period Is Coming Tomorrow

Share

9 minute read Updated on 23rd April 2025

Signs Your Period Is Coming Tomorrow

Written by Boris Brut
Medically reviewed by Katerina Shkodzik, MD, Ob&Gyn

Understanding your menstrual cycle can empower you to predict and handle pre-period symptoms more effectively. By identifying period symptoms that indicate your period is about to start, you can take proactive steps like gathering the products you need, adjusting your schedule, and engaging in some self-care. Paying attention to your body helps you prepare both physically and emotionally, reducing the anxiety and stress surrounding your period. 

Mira’s Fertility Monitor, the Mira App, and Mira Wands can provide helpful information on hormonal changes, making predictions about your menstrual cycle more accurate and convenient. The Mira Fertility Monitor analyzes hormone levels through lab-grade testing technology, giving you precise, real-time data. The Mira Wands detect fluctuations in urine samples of important fertility hormones like luteinizing hormone (LH), E3G (a metabolite of estradiol), PdG (a metabolite of progesterone) and follicular stimulating hormone (FSH). The Mira App then interprets this data, displaying clear, personalized charts that help you understand when your period will arrive and how your hormones are fluctuating throughout your cycle.

Common Physical Signs Your Period Is Coming Tomorrow

Cramps

One of the most common physical signs that your period is approaching is menstrual cramps. These cramps can vary from mild discomfort to moderate pain in your lower abdomen, caused by uterine contractions and prostaglandins as your body prepares to shed its lining. To ease this discomfort, consider trying out some natural remedies such as Mira Fertility Tea, gentle stretching exercises, warm baths, or heating pads. These might help soothe cramps and can significantly increase your comfort as your period approaches.

Breast Tenderness

Breast tenderness often occurs right before your period due to swelling and increased sensitivity. To alleviate the discomfort, it helps wear supportive and comfortable bras. Gentle breast massage or reducing caffeine intake in the days leading up to your period can also improve breast tenderness. These sensations typically go away soon after your period begins, so packing your patience and practicing gentle self-care during this time is helpful.

Bloating

Bloating, a common premenstrual symptom, occurs due to increased water retention triggered by hormonal fluctuations. This may cause feelings of fullness or puffiness, particularly around your abdomen. You can minimize bloating by staying hydrated, limiting sodium intake, and eating balanced, nutritious meals. Additionally, foods rich in potassium like bananas, spinach, or avocados can naturally help reduce water retention and enhance comfort.

Headaches or Migraines

Headaches or migraines can occur just before your period, typically triggered by fluctuations in estrogen levels. To manage these symptoms effectively, stay hydrated, prioritize rest, and consider using mild pain relievers if necessary. Relaxation techniques like gentle yoga, meditation, or deep breathing exercises can also relieve tension, helping you maintain a calmer state of mind and reducing the frequency and severity of headaches.



Changes in Vaginal Discharge

Thicker, White, or Creamy Discharge

Before menstruation begins, vaginal discharge usually becomes thicker and appears white or creamy. This pre period discharge occurs because progesterone levels rise after ovulation, causing cervical mucus to thicken. Wearing breathable cotton underwear during this time can enhance comfort and maintain freshness, reducing any potential discomfort caused by changes in discharge consistency.

Decrease in Cervical Mucus

As your period approaches, you may notice a significant reduction in cervical mucus. This decrease signals your body transitioning into menstruation. Observing and tracking these changes using Mira’s tools can offer deeper insights into your reproductive cycle, enhancing your understanding of your body's natural rhythms and improving your ability to predict menstrual timing accurately. 

Spotting or Light Pink/Brown Discharge

Spotting or light pink or brown discharge can occur shortly before your period officially begins, indicating the onset of menstrual bleeding. This spotting is typically brief and transitions smoothly into your regular menstrual flow. To feel prepared and comfortable, consider keeping panty liners readily available during these days, offering reassurance and peace of mind.

Mood and Emotional Symptoms

Irritability or Mood Swings

Mood swings and irritability before your period are commonly experienced due to hormonal fluctuations affecting brain chemistry. Engaging in enjoyable activities, hobbies, or mindful practices can also significantly help stabilize mood, reducing feelings of frustration or irritability. 

Fatigue

Fatigue is often heightened right before menstruation because of declining estrogen and progesterone levels. This hormonal shift can lead to feeling unusually tired or lethargic. Prioritizing rest, ensuring good sleep hygiene, and incorporating relaxation techniques into your routine can mitigate fatigue. Short naps, relaxing baths, or gentle exercise can further improve your energy levels, helping you feel more balanced and refreshed. The Mira Hormone Monitor can help you understand these hormonal changes and anticipate dips in energy.

Anxiety or Sadness

Experiencing anxiety or feelings of sadness before your period is normal and linked to PMS-related hormonal fluctuations. Engaging in calming activities, mindfulness practices, or journaling can effectively manage these emotional symptoms. Reaching out to supportive friends, family, or mental health professionals can also provide additional emotional relief and support during this period.

Digestive and Appetite Changes

Cravings for Sweet or Salty Foods

Hormonal shifts often increase cravings for sweet or salty foods before your period. Managing these cravings with balanced nutrition, hydration, and mindful eating practices can help maintain stable blood sugar levels. Allowing occasional indulgences while focusing on nutritious foods ensures balance, reducing stress related to food cravings.

Increased Appetite

Before menstruation, your body may naturally experience an increased appetite to prepare for the energy demands associated with menstruation. Eating balanced meals with adequate protein, healthy fats, and complex carbohydrates can support your nutritional needs effectively. Planning meals and snacks in advance can also help manage hunger levels and maintain consistent energy throughout the day. 

Digestive Issues

Digestive disturbances like bloating, gas, or diarrhea before period are common, resulting from hormonal changes affecting your gastrointestinal system. Maintaining hydration, consuming fiber-rich foods, and including probiotics in your diet can significantly alleviate these digestive symptoms. Additionally, gentle physical activity, such as walking, can support digestion and overall comfort.

Sleep Disturbances and Body Temperature Changes

Difficulty Sleeping

Before menstruation, hormonal fluctuations or physical discomfort can disrupt your sleep patterns. Establishing a soothing bedtime routine, reducing caffeine intake, and creating a comfortable sleeping environment can improve sleep quality. Relaxation techniques, aromatherapy, and gentle stretching before bed can further enhance restful sleep, improving your overall well-being.

Slight Increase in Basal Body Temperature

A slight increase in basal body temperature typically occurs during the luteal phase after ovulation and just a couple of days before menstruation, basal body temperature (BBT) declines. Mira’s Basal Body Thermometer can accurately track these temperature shifts, providing detailed insights into your cycle. Regular BBT tracking helps you anticipate your period more effectively, enhancing overall reproductive health management.

How to Prepare for Your Period

Use a Period Tracker

Using a reliable period tracker, such as the Mira App, helps you understand and anticipate your cycle. By logging symptoms and hormonal changes, you gain clearer insights into when your period is likely to start. Consistent tracking empowers you to prepare in advance and feel more in control of your body. 

Stay Hydrated and Eat Balanced Meals

Hydration and balanced nutrition are essential as your period approaches. Drinking enough water helps reduce bloating by flushing out excess sodium and supporting digestion. A well-balanced diet with whole grains, lean proteins, fruits, and vegetables supports stable energy levels, improves mood, and helps you manage common premenstrual symptoms like cravings and fatigue. Nutrient-rich foods also regulate blood sugar, reduce inflammation, and support hormonal balance. Including omega-3 fatty acids from foods like salmon or flaxseeds and limiting processed foods can also enhance your overall sense of well-being. Making these choices consistently can help you feel more resilient and better prepared for your period.

Keep Menstrual Products Ready

Being prepared with your preferred menstrual product – whether that’s pads, tampons, liners, or menstrual cups – ensures you feel confident and at ease when your period begins. Consider packing a small pouch in your bag with essentials, so you’re never caught off guard. 

Practice Self-Care

Taking time for yourself as your period approaches is just as important as physical preparation. Gentle exercise, meditation, journaling, or simply relaxing with a warm bath can help reduce stress and relieve premenstrual discomfort. Practicing self-care regularly supports both physical and emotional balance.

When to See a Doctor

Severe Pain That Disrupts Daily Life

While mild cramps and discomfort are common, severe pain that prevents you from carrying out daily tasks is not. If pain is debilitating or persistent, it's important to consult a healthcare provider to rule out conditions like endometriosis or fibroids.

Extremely Heavy Bleeding or Irregular Cycles

Heavy bleeding, especially if you need to change your pad or tampon every hour, or cycles that are consistently irregular, may indicate an underlying hormonal imbalance. These issues are worth discussing with a specialist for proper evaluation and support.

Missing Multiple Periods Without Pregnancy

If you've missed multiple periods, are experiencing period symptoms but no period, and you're not pregnant, it could be due to stress, weight fluctuations, or a hormonal disorder. Consulting with an expert at the Mira Hormone Health Clinic for Fertility can help you better understand and manage your menstrual cycle. Mira’s expert team of fertility practitioners, nurses, and nutritionists uses your hormone data to identify patterns and offer personalized guidance. Their data-driven approach includes tailored tips on lifestyle, nutrition, and stress management to help regulate your cycle and support overall hormonal health.

Conclusion

Knowing the signs your period is coming tomorrow allows you to tune into your body and support yourself with confidence and care. From physical cues like cramps and breast tenderness to emotional shifts and changes in discharge, your body sends clear signals. Tools like Mira’s Fertility Tracker, App, and Wands can give you a data-driven way to better understand and manage your cycle. With preparation and self-awareness, you can approach your period feeling empowered and in control.

Frequently Asked Questions

What are the same symptoms of pregnancy and period?
Pregnancy and premenstrual symptoms can overlap, including bloating, breast tenderness, fatigue, and mood changes. These similarities can make it tricky to tell them apart without a pregnancy test.

Do periods happen randomly or can you “feel” it coming?
For many people, periods aren’t random – they come with physical and emotional signs like cramps, breast sensitivity, and mood shifts, often referred to as PMS or “pmsing.” Tracking your cycle can help you predict when your period is about to start.

Why did my period come early?
Periods can come early due to stress, hormonal fluctuations, changes in routine, or even certain medications. While occasional changes are normal, keeping track of your cycle helps you understand what’s typical for your body.

Science helps you get

Get the real-time accuracy Mira has to offer and reach your fertility goals.