My gf and I had sex using a condom around the second week of November. She had a late period in November, but she said it was due to work stress. When her period came it was normal, heavy days in the begining and light at the end of the cycle. Then she got the flu which lasted around 3 weeks and work has made her even more stressed. We did not have sex at all in December and it is now the end of the month and she isn't experiencing any PMS symptoms, but she isn't experiencing pregnancy symptoms either except her breasts are a little swollen. She took a negative test, but is still freaking out because she doesn't know why her PMS symptoms aren't coming. Can she be pregnant even though we haven't had sex for over 1.5 months and she had a normal period in November? I read bleedings are usually light if your pregnant with no heavy days.