The past couple cycles, if my DH and I BD near my period it comes early. My cycles are usually 29-31 days and the past two months I've started on CD 26 a few hours after we BD. I'm wondering if this is cause for concern, mostly because we are TTC and have been for a while. I can remember this happening before, but only if we DTD the day before my period was due or when it was late, but I can't remember ever starting days early like this. I never bleed after sex any other time, just when it's close to my period in the past 2-3 months it seems to induce it. I'm wondering if I should book an appointment with my doctor just to see what's going on.