What do small brown spotting after IVF means?

Several things. Brown spotting after ivf could indicate a slightly traumatic embryo transfer, implantation bleeding, a viable cervix that bleeds easy, a possible early miscarriage; or if you are on Crinone (progesterone gel) Progesterone support, there is a increased risk of early bleeding that fortunately may not be related to a miscarriage. Good luck. Hope this helps.