iv found having unprotected sex does the same thing to me, iv been on the phone to midwives from 14 weeks and they say unless its accompanied by cramps/ back pain or is pink or blood stained you should not worry too much. it does regenerate but i know too well the shock of finding it so early on lol best of luck xo
It looks like a clump of boogers. You are probably gradually loosing yours but since they can regenerate its not really something to worry about unless it has blood in it. I lost mine repeatedly from 22 weeks on and then at 38 weeks I lost one that was mixed with blood (bloody show) and had my daughter 36 hours later.