I have had nuvaring for four months and because of a prescription issue I put it in over a day late maybe a day and a half late, three days later my boyfriend and I had unprotected sex several times, and he did finish in me.. Is it possible for a pregnancy? I've been feeling sick and my breasts have gotten bigger and tender, plus I've been dizzy and moody, I could be crazy and thinking I'm pregnancy or could I be?