<s>[INST] I had the ivf had the egg collection on Friday the15 then had the embryo transfer on wednesday 20 th which was a five day transfer i have just noticed streaks od blood in my discharge as if my period is going to start  Does this mean the treatment has not worked or is it implantationThanks [/INST] Hi dear, and thanks for your query. There are two reasons that can cause vaginal blood discharges after you have done embryo transfer :implantation bleeding your periods More probable it may be from implantation bleeding because this is the time of implantation but we haven't any method that can exclude that you are having periods. Wait for another days to do blood bChatDoctor to confirm viability of your pregnancy. All the best </s>