So me and my gf have been sexually active for about a year now, We ALWAYS use a condom until the last time. I pull-ed out which I know means absolutely nothing but anyways she is about 3 weeks late, She has however been 2 and 1/2 weeks late before. Her period is very unpredictable. She has taken 2 pregnancy tests the first was 3 days after she was supposed to get it and it said she wasn't pregnant, then the 2nd time was about a week and a half after and it said NO however there was a line and also a very light line. Even though it read no, I cant seem to trust it. She shows absolutely NO SYMPTOMS at all. We went through many lists of symptoms and she has none. In fact she has lost about 10 pounds. Id appreciate any responses. Thank You!