i dont remember my last period but im a few months pregnant and not sure if the dad is my fiances

Hi Mamastb,

Your doctor is estimating around July 24 for when your last period started.  That is not when you conceived however.  That depends upon when you ovulate.

Normally that is between about days 11 and 16 of your cycle.  Call it two weeks, so around August 7.  Then it takes another few days to actually become pregnant so around August 10 or so.  Nobody, not even your doctor, can tell you exactly when you became pregnant. 

A DNA test can confirm.

Good luck.