17+4 today and (?? after masturbating this afternoon I started spotting brown/light pink blood which I think has now cleared up although I havnt been back to check yet. Their was no inside action just clitroal stimulation. This also happened a few weeks ago had a scan Saturday and baby was fine. But am now panicking again. Going toilet afterwards really stung quite a bit but I'm terrified I'm losing the baby now, I have never bled after masturbation except during pregnancy and have only bled two times the other times have been fine. What's causing this?