What causes mid-cycle bleeding/spotting?

Not sure if this question belongs here or not. It's never happened before, but I'm not exactly sure if its a postnatal thing...? This is going to be TMI, so sorry in advance!

I'm CD 15 today, AF finished last Wednesday (CD 7, a 7 day period which is, unfortunately, normal for me). My cycles have been regular sonce 8 weeks after the birth, every 28-30 days (weren't even that regular when we were TTC :rolleyes:). Last night before I went to bed I had some period-ish cramps, plus what I think is ovulation pain. 1am I got up after feeding Jazz and went to the toilet, noticed some pinkish-red blood. More than spotting, but not really bleeding, if that makes sense?

I've been having what I think is ovulation pain (:dunno: never had it before, its a new experience starting two cycles ago as I never ovulated on my own!) kind of like a stitch on one side. Last night I had that pain plus period-ish cramps all over.

Could I be ovulating?!?!?! :o All by myself?!?!? Is there any other reason for mid-cycle bleeding/spotting?

Oh yeah, I havent had any 'action' ;) in weeks, not even DIY, so thats definately not it. :lol:

Hmmmmmmmm, now its seemed to stop... weird...

:doh: now it started again but is bright red... WTF is going on...