It happened to me at 5 weeks,6 weeks and 8 weeks po hun I pulled mine out gently as I felt it was stopping my insicions healing propely, it left a red tiny hole when I pulled it putt at first, so covered it with a plaster for a day or two, I showed the nurse the little red hole she was fine with it I wouldnt worru to much its really common, I waited for mine to disovle for a bit but it never happended it was the end of my incision each time where the stitch migrated out xx