14 days late

Samantha
Hey ladies,
So i am 14 days late and to be totally honest, i don't think i am pregers. I took two tests both were negative. But i had a csection about 5 months ago. Could it be bc of that? I had all thesymptoms it was coming, but never came. I am not on the pill, we use a condom, and sometimes if we don't he pulls out. So what do you think?