I had a miscarriage on April 4th 2013. Had labs taken every week until may 2ND to make sure my HTC level had reached zero. My doctor told me I should expect a visit from AF with in 30 days. Well she never stopped by. So April 21,2013 I took another home pregnancy test and it was positive. Had this confirmed by my doctor a few days later that yes I am expecting... I'm having a hard time figuring put my due date and conception date. Can anyone help?