| Re: when should implantation bleeding happen after day 5 blastocyst transfer
Implantation bleeding can occur anywhere from 48 hours after transfer and as late as 5 days after. Not all women have implantation bleeding, I think the statistic is like 25% of women have implantation bleeding.
You might be experiencing late implantation and therefore have the brown discharge or worst case scenario...you're getting your period.
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