I'm on birth control and have been for close to 9 years now, no changes in that. I do fluctuate by an hour or two when I take my pill in the morning. I'm about a week and a half through the current cycle.
I just recently started a relationship with a guy, and we've had sex twice in the past week and a half. Once two Fridays ago, and again on, I think, this past Thursday. We used a condom both times, no breakage. Before him, the guy I was with had a fairly small penis, and the last year or so I haven't had much in the way of "action." My new guy has remarked on the fact that I'm really tight. The first time I had sex with him (2 Fridays ago) it was kind of rough and I think the condom and I didn't get along (Something in Trojan's Her Pleasure condoms tends to cause me pain). The second time, we used a different kind of condom and everything seemed fine. The spotting probably started about a day or two after the second encounter.
The things that I currently think could be causing this:
-Pregnancy (I know I shouldn't be worried about this, but I am anyways)
-A reaction to the condom used in the first encounter, a week and a half ago
-My body reacting to not being active in this manner for a while
-His penis being larger than I'm used to and doing some damage
I know I'm probably just overreacting, but I get really freaked out when I don't know what's going on with me. What do you think might be the most likely cause? If it keeps going much longer, should I see a doctor? Thank you in advance for your insights.