I am 18 years old and I have sex with my boyfriend last year of October. He told me that he shoot it in but when I went to the hospital, one of the nurse told me that I am not pregnant. 2 months later, I had sex with another guy and he also shoot it in me, so right now. My belly looks like I am 8 months and the question is, How come one of the nurses told me I am not pregnant?