Hi there -
We have a pregnancy calculator -
http://www.medhelp.org/calculators/show/2?community_id=98
Best wishes,
Emily
Most women ovulate about 14 days before their periods start, unless you have irregular periods, or if you know when your period was due about two weeks before that is when you conceived. If you're questioning paternity then you may need a DNA test to be sure.
ggo to whattoexpect.com do the pregnancy calculator