So my bf and I had intercourse about a week ago, and I was on my period and taking my pill, I've been on it for about two years now. I take it everyday at around the same time...maybe a min or two apart. We used the "pull out" method, and he only pre-ejaculated into me. Are the chances of me becoming pregnant high if I was on my period and am taking the Mononessa pill everyday at the same time?