Painful sex?

So for the last month or so sex has been kind of painful for me it's almost like I'm losing my virginity all over again, (it's been years since I lost it). I feel tighter and not in a good way. I have an appointment with my gyno for a BC checkup and I'm going to mention it but I'm just wondering if anyone has experienced the same? I've been on this BC since June and have just started noticing it within the last month. Is it stress? Is it because my husband and I just started having sex without condoms and I'm just more sensitive?