I have taken a few PT at home and they all say NEG. My period is 17 days over due. I have been stomach sick and am having breast tenderness, I also have had a fever of 99.4.

Can the tests be wrong? May it be that I am not producing the hormones yet? How long can I go without producing these hormones, if that is the case?

Help!

Are your cycles normally regular? Have you been stressed? You start producing the HGc hormone right after conception. I would try a digital home pregnancy test, as they are the most sensitive, Or go to your OB and have them do blood work.