Positive Test now its negative


Took 2 tests on Wednesday, clearly positive. Took one yesterday that was faint but there definitely was a second line, took a second that was still faint. Took 2 today and I cant see a second line at all :( now. We just started trying so this is all new to me!!! I've been cramping since Sunday and my period was due on Wednesday but the cramps are a lot less today. I'm usually pretty on time with my period but I dont know what to make of all this. Help!