Welcome to the Lochan.org Pregnancy Calculator.

Enter day, month, and year in the appropriate boxes and press Enter.

First day of last menstrual period (LMP): // (DD/MM/YYYY)
Ovulation date: // (DD/MM/YYYY)
Ovulation on:
Conception on:
Expected due date (EDD): // (DD/MM/YYYY)

So on the // (DD/MM/YYYY) you would be which means you are in your week.

NO RESPONSIBILITY ACCEPTED: results from this calculator are a GUIDE ONLY, and there is no guarantee that they are correct. Please check them by an alternative method.

This is version 2 of the calculator; I've added information on what week you are in (the first week you are 0w+0 through 0w+6, the second week you are 1w+0 through 1w+6, and so on), and I've also added an option to choose the day of conception - the same day as ovulation seems most likely to me, but I think many other calculators assume it is the day after ovulation.

Please email me (Keith) if you have any problems; I'm keen to fix them!