I have a friend who's 12/13 weeks pregnant. The last 2 days she's had some brown blood. & she's a bit sore, but we assume thats just her body doing its thing.

I tried my best to reassure her that it should be ok, but has anyone got any idea's why it could be happening?

I'm pretty confident that its just some old blood & baby is fine, but she's not so sure.

Anyone else experienced this? I have, but it was much later in pregnancy, so a bit different.