Track your menstrual cycle, predict ovulation, and understand your body's natural rhythms
Complete the form to get your personalized cycle analysis.
Discover why our Period Tracker stands out from the rest
Accurately predict your period start dates and fertile window
Identify your ovulation days for conception or contraception
Track physical and emotional symptoms throughout your cycle
Get notifications for upcoming periods and fertile windows
Works perfectly on all devices from desktop to mobile
Your data never leaves your browser - complete privacy
Understand the different phases of your menstrual cycle
Days 1-5: Your period occurs as the uterus sheds its lining. Hormone levels are at their lowest.
Days 1-13: The pituitary gland releases FSH, stimulating follicle development in the ovaries.
Day 14: A mature egg is released from the ovary. This is your most fertile window.
Days 15-28: The empty follicle produces progesterone to thicken the uterine lining.
Follow these simple steps to track your menstrual cycle
Enter the start date of your last menstrual period for accurate tracking.
Provide your average cycle length and period duration for better predictions.
Note any physical or emotional changes throughout your cycle.
Receive accurate predictions for your next period and fertile window.
Find answers to common questions about menstrual cycle tracking
Period predictions are based on the information you provide about your cycle length and patterns. For those with regular cycles, predictions can be quite accurate. However, many factors can affect menstrual cycles including stress, illness, travel, and hormonal changes, which may cause variations. The more cycles you track, the more accurate the predictions become as the algorithm learns your personal patterns.
The fertile window refers to the days in your menstrual cycle when pregnancy is possible. This typically includes the 5 days before ovulation and the day of ovulation itself. Sperm can survive in the female reproductive tract for up to 5 days, and the egg is viable for about 12-24 hours after ovulation. Tracking your cycle helps identify this window whether you're trying to conceive or avoid pregnancy.
While period trackers can help identify fertile windows, they should not be used as a sole method of birth control unless you're using a scientifically validated fertility awareness method (FAM) and have received proper training. Cycle tracking apps can supplement FAM but have limitations. For effective contraception, consult with a healthcare provider about methods that are right for you.
Tracking your menstrual cycle helps you understand your body's patterns, recognize irregularities, predict periods, identify fertile windows, and notice how hormonal changes affect your mood, energy, and physical symptoms. This knowledge empowers you to plan activities, manage symptoms, discuss concerns with healthcare providers, and better understand your overall health. Many health conditions can affect menstrual cycles, so tracking provides valuable health information.
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