So my worste nightmare is having a child at my age. I'm about to start college, I can't afford to have a child and neither can my girlfriend. Last month my girlfriend and I had sex 2 - 3 times. every single time I used a good quality condom and I also pulled out before I finished just in case. we also filled the condom with water to ensure that there was no brakage. My girlfriend was meant to have her period on the 21st of Oct, she has been late. I had her take a pregnancy test on the 28th and it came out negative for pregnancy. This was a releif, but now its November 1st! she still hasn't had her peroid. (she has irregular peroids but not this late). she has been stressed out latley but why is it this late? it should also be noted that she hasn't showed any signs of pregnancy. Could it be possible that she's pregnate?