Hi ladies - first time post for me! Have had dark brownish bleeding for around a week now, - not heavy but its driving me nuts! This comes after 1 week of really light spotting. Am 5 weeks pregnant, through IVF. Wondering how long this can go on for?? We are off for 6 week scan this week so am hoping that provides some reassurance but any suggestions would be appreciated! I know I am way beyond the implantation bleed stage..