When to expect menstral period after 3 days embryo transfer?

Maybe 1 1/2- 2 weeks: The period will come 1 1/2- 2 weeks after embryo transfer provided your Progesterone levels drop. Most women are on Progesterone supplements after ivf and this Progesterone may delay the period from starting, so in many cases the period will not come as expected. The best option is to follow your re's instructions about when to come in for a pregnancy test.