OK so I have been on birth control for 2 months. Then I changed to the generic which my doctor said I could take just like the other pill and it will still be as effective. Five days after I started the generic brand me and my boyfriend didn't have sex but did sexual activies. He ejaculated on my stomach and some got near my vagina. I took my pill that night as I do every night at 10 pm. Then the next night I took my pill 10 hours late. Is there any way I could be pregnant?