Enter your cycle details to calculate your fertile window
Last Menstrual Period
Cycle Length (days)
Period Length (days)
Menstruation
Fertile Window
Ovulation Day
Predicted Period
Ovulation Date
Fertile Window
Next Period
Your menstrual cycle is more than just your period; it’s a dynamic process driven by hormonal shifts, typically lasting between 21 to 35 days. It affects your mood, energy levels, skin and even your sleep. By learning how each phase of the cycle works, you can make informed choices for your health and confidently rely on tools like a period tracker, ovulation calculator, or a menstrual calculator.
This is the first phase and starts on Day 1 of your cycle, the day bleeding begins. This is when your body releases the built-up lining of the uterus as menstrual bleeding, which can last between 3 to 7 days, and the flow varies for everyone.
Hormones like estrogen and progesterone are at their lowest, which can cause lower energy levels. Follicle-stimulating hormone (FSH) begins a gentle rise to recruit follicles for the next cycle.
This phase begins on the first day of your period and continues until ovulation. As estrogen levels rise, your ovaries start developing follicles, and usually one grows into a mature egg. You might feel more energetic, clear-headed and motivated during this time.
Gradual estrogen increase boosts mood, mental clarity and skin health. FSH stimulates early follicle growth, while rising estradiol and inhibin from the dominant follicle temper FSH as ovulation nears.
Ovulation usually occurs mid-cycle, but it varies depending on the total length of your cycle. A spike in luteinising hormone (LH) causes your ovary to release a mature egg, and this is accompanied by a brief mid-cycle rise in FSH.
Ovulation symptoms may include:
Yoga & Relaxation
Strength Training
Pregnancy-safe Exercises
Pelvic Floor & Core Workouts
This phase starts after ovulation and continues until your next period, usually lasting 12 to 16 days. During this time, your body makes more progesterone to prepare for a possible pregnancy.
If the egg isn’t fertilised, hormone levels drop, and PMS symptoms may appear, such as:
Mood swings
Breast tenderness
Bloating
Food cravings
In this phase, the progesterone hormone dominates; FSH remains relatively low, and estrogen falls before your next period, leading to possible mood changes.
If pregnancy doesn’t happen, your period starts, and the cycle begins again.
If your period tracker or menstrual cycle calculator shows irregular patterns or missed cycles, underlying medical conditions could be the reason. Understanding these can help you take control of your reproductive health.
Polycystic Ovary Syndrome causes hormonal imbalances that often lead to missed or irregular periods.
An underactive or overactive thyroid can interfere with hormone regulation and lead to irregular menstrual cycles.
Tissue similar to the uterine lining grows outside the uterus, often leading to painful periods and irregular bleeding.
If your period tracker or menstrual cycle calculator shows irregular patterns or missed cycles, underlying medical conditions could be the reason. Understanding these can help you take control of your reproductive health.
By entering just a few cycle details, the app uses smart algorithms to calculate ovulation dates, fertile windows, and period predictions. It doubles as an ovulation calculator, fertility calculator, safe period calculator, and even a menstrual cycle calculator, helping users track more than just dates. It also provides daily wellness tips, blog suggestions, and alerts based on your mood, symptoms and goals.
Whether you're tracking PMS or trying to conceive, the period tracker becomes more accurate the more you use it, adapting to lifestyle changes, stress levels, and other factors. It's also one of the best tools when you're looking for the best time to get pregnant after period calculator recommendations.
Your period can tell you a lot about your overall health. While it’s different for every person, common symptoms may offer clues about your cycle and what your body needs.
Emotions: Mood swings are common due to hormonal shifts.
Bleeding: Duration and flow may differ from cycle to cycle.
Skin Changes: Hormonal changes can cause acne or dryness.
Pain: Many experience cramps, headaches, or lower back pain.
Sex & Libido: Desire may decrease or increase around your period or ovulation.
Vaginal Discharge: Discharge may change in consistency and colour throughout your cycle.
Using tools like an ovulation period calculator or a fertile days calculator can help correlate these changes to your ovulation schedule and predict patterns better.
Missed periods can be caused by several factors. If your period calculator or period tracker shows irregular patterns, here are some possible reasons to consider:
Stress: High stress can impact hormone levels and disrupt the fertility calculator.
Medical Conditions: PCOS, diabetes, orthyroid disorders may disrupt your cycle.
Sudden Weight Fluctuations: Rapid gain or loss can affect menstruation.al changes can cause acne or dryness.
Menopause/Pre-Menopause: Hormonal shifts during this transition can cause irregular or missed periods.
Pregnancy: A common cause of missed periods—use a pregnancy ovulation calculator to understand your fertility window.
Period calculators offer general predictions based on average cycle data. Their accuracy increases the more consistently you track your periods using a period tracker or ovulation day calculator.
Start tracking the first day of your period for a few months. Count the days between cycles to understand your average length, or use a menstrual calculator for quick help.
A period calculator can’t confirm pregnancy but helps identify fertile windows. Combine it with an ovulation date calculator or fertile period calculator to improve timing if you're trying to conceive.
Enter the first day of your last period and average cycle length. The calculator will estimate your next period and ovulation date using an integrated ovulation date calculator/ovulation cycle calculator.
Signs include cramping without bleeding, breast tenderness and fatigue. Use a menstrual cycle tracker or period tracker to notice if your cycle is delayed.
Track signs of ovulation or ovulation symptoms, use an ovulation calculator, and maintain a healthy lifestyle. Intercourse during the fertile window increases chances.
Yes, both physical and emotional stress can delay ovulation by affecting hormone production.
A period calculator can estimate when your period should arrive. If it’s several days past that and no bleeding occurs, your period may be late.
