I didn't get a normal period, it came a week before my period then nothing when my period was due. This has never happened. When I had sex it was two days after I was supposed to ovulate. But I checked my temperatures and it didn't spike till the day after I had sex so then was I ovulating then and  could I of gotten pregnant? I have almost all the signs. I've taken tests but they are all negative. Has anyone had this and turned out to be pregnant but the tests just weren't showing positives?