My boyfriend and I were together on the last day of my period. We used a condom but it came off so he quickly pulled out (did not finish inside me). When he did finish, it was outside of me but some came in close contact with the outside of my vagina. I showered right after. I am supposed to get my period for another 17 days but I have been feeling a little nautious the past few days and tired and fatigued. I've also had the feeling of being very full too. Could these be early pregnancy signs?