Hi, 28yr/f on hcg diet had period the week I started the hcg and then a plan b a week after that. I felt like I had my period a week after that but didn't then 2wks from taking plan b got my period but it was light and foul smelling ( I read somewhere maybe it wld be the old blood from the plan b that shld have come out) How long should I expect it to last and is it going to smell during sex? Should I douche to clean it out?