Gurnz, could it possibly be breakthrough bleeding? This happens around the time that AF would normally be due. It's probably nothing to worry about if it's brown in colour, probably just old blood.

I had a bit of bleeding after DTD a few times during my pregnancy. I didn't have a scan until almost 13 weeks, only to find out that I had a blighted ovum or the baby had died at 8-9 weeks. I wish I'd had it checked out earlier! In my case though, my symptoms had started to disappear so I had a feeling that something wasn't right.

I'm sure it's nothing to worry about but as the other ladies said, just go and have it checked out, even if it's just to put your mind at ease

Love
Belle
-xxxooo-