Can anyone help?

Clare

I am 4 weeks and 5 days with my second child. My first pregnancy was fine no problems. I had a miscarriage at the beginning of this year at 11 weeks. I had a lot of spotting in that pregnancy.

Today we had sex this morning. When I've used the loo this afternoon I had pink blood mixed in with discharge when i wiped. Is this normal after sex or could it be the start of a miscarriage?