Pregnancy Week Calculator
How many weeks pregnant are you today? See your trimester and the next scan or test that is due.
Open calculator → Cycle tracking
Period Calculator
Enter your last period and your usual cycle length to see the dates of your next six periods, plus a quick read on whether your cycle is in the typical range.
How to use it
- Enter the first day of bleeding of your most recent period.
- Set your average cycle length — the gap from the first day of one period to the first day of the next.
- Set how many days you usually bleed, so the calculator can show the likely end date too.
What counts as a normal cycle
- A normal adult cycle is 21 to 35 days long, with 2 to 7 days of bleeding. In the first couple of years after periods start, and in the years approaching menopause, cycles are naturally more variable.
- Predictions assume your cycle stays the same length. Travel, illness, thyroid problems, big changes in weight, stress and PCOS all shift the dates.
- This is a period predictor, not an ovulation tracker. If you are trying to conceive, use the Ovulation Calculator instead.
When irregular periods need a gynecologist
See a gynecologist if your cycle is shorter than 21 days or longer than 35 days, if bleeding lasts more than 7 days, if you soak through a pad every hour or pass large clots, if you bleed between periods or after intercourse, if you miss three or more periods without being pregnant, or if periods are painful enough to stop you going to work or college. These are common and treatable — they are not something to wait out.
Frequently asked questions
How is my cycle length measured?
From the first day of bleeding of one period to the day before the first day of the next. Not from the day bleeding stops.
My periods are irregular. Will this still work?
The predictions will be rough. If your cycle varies by more than about four days month to month, treat the dates as a guide only, and note that persistently irregular cycles are worth investigating — PCOS and thyroid disorders are both common and both easily tested for.
Can stress delay my period?
Yes. Significant physical or emotional stress, sudden weight change, intense exercise, illness and disturbed sleep can all delay ovulation, which in turn delays the period. An occasional late period is usually nothing; a pattern of them deserves a check-up.
I have missed a period — am I pregnant?
Take a home urine test from the first day of the missed period. If it is negative and the period still does not arrive within a week or two, see a gynecologist rather than repeating tests indefinitely.
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Open calculator →Emergency? Call Us
24x7 emergency and labour support in Amravati.