Yes it started yesterday. Slightly watery bright red blood ran out of me every time I stood up or went to the loo, for about an hour, I literally filled 3 maternity pads! It tapered off to darker blood for the rest of the day, more like a period, and now just spotting. I'm expecting more blood in a variety of colours.
I've had it before, once was with my little boy. It went by 20w with him x