Actually kind of disappointed...

I track my cycle to prevent pregnancy and that is the only birth control my husband and I use. This past month during my earliest fertile time we fooled around, like his penis being in my lips but not quite inside. Well now I'm 10 days late which is crazy as I'm super consistently a 28 day cycle and I have pregnancy symptoms. I've taken so many tests and they all come back negative. Went to the Dr today and they confirm negative. Now I'm sad that I'm not pregnant. I feel insane!!