Just wanted to second what the other girls have said in regards to irritation... there's a whole lot of P4 going on in there, & chances are your body is probably just a little over it

What Acacia has said in regards to everything moving around etc is something I was going to mention as well!

As far as other types of bleeding goes - you can get spotting or even heavier bleeding if the placenta is lying low... they'll look at that next scan (you would have your nuchal coming up in the next week or two) & be able to tell you if that would be a factor.

Otherwise though, I'm thinking its just a little irritation... a massive amount of p4 almost 12 weeks into the pregnancy is a lot hun xxxx