Hey! Don't stress too much about the exact date, babies hardy ever arrive on the actual due date anyway. Usually, your gynac will calculate it from the first day of your last period, or they'll tell you after your first ultrasound scan.
It is simple, dear. Your doctor will calculate it based on your last period date, or they will tell you during your first scan. Just stay relaxed and take care of your health.
Didi, in our town, the elder ladies count 9 months and 7 days from the last period. But when you go to the hospital, the doctor will do a small test scan and tell you the exact date. Don't worry about it.
You don't need to pay for fancy early tests or apps to find it. Just use a free online calculator with your last period date. The doctor will confirm it during your first basic ultrasound anyway, so plan your budget around that first scan.
You can easily calculate it by entering the first day of your last period into any pregnancy tracker app, it adds 280 days. But honestly, the dating scan done around week 8 to 12 is the most accurate way to find the real due date.
Medically, we use Naegele's rule, which is adding 7 days to your LMP and subtracting 3 months. But practically, the early dating ultrasound is the gold standard because ovulation dates can vary. Your gynac will confirm it at your first visit.