Hi i just recently found out i was pregnant i havent had my first prenatal check up yet but my last period was oct 25-31 and i skipped nov i took pregnancy teset threw out the whole month of november and they all came up negative i took another dec 22 and it was posotive so how would i calculate my conception date, also all the pregnancy test were from the same box and batch and the were all unexpiered
Hi, I think you should do an ultrasound to confirm the period of gestation.  It will give you the approximate date of delivery.  Hope I have answered your question.