A few weeks before her period was supposed to start we had unprotected sex twice. the first time was just for a little while but i noticed when i pulled out the tip of my penis was wet. i don't know if i cummed or not. and the second time we did it for hours but i did not feel myself cum. her period was supposed to come on oct 4. but it came 2 or 3 days late and only lasted 3 days and was very light. so we thought we were safe but ive been reading online that she can be pregnant. she doesn't talk to me anymore so i dont know of any symptoms but i remember her telling me she has had sore throats, headaches and feeling abnormally tired at work.