3 WEEKS LATE AND BFN! UGH!

Bianca
I am now 3 weeks late for AF, took 2 tests so far, last one yesterday. Both negative! I've had a few cramps on different days so I thought AF was on her way...I had sore breasts but only a few days. So wear the hell is she? Lol we have been TTC for 5 months. I think my bodies just out of wack, but I'm just getting frustrated now. It'd never been this late...