it can still help post IUI Leash - DH and i were told to make sure i O'd cos the contraction of the uterus helps the swimmers get up to the tubes rather than just in the uterus where it's deposited.

i don't know if it's aids implantation, but we were told just to do whatever we normally do. if you're not doing IUI in a hetero relationship, you wouldn't know exact timing, so you wouldn't avoid DTD in the implantation window (which is generally 6-10 dpo, can be as late as 12 dpo though) - so i don't see how it could harm anything. the contractions of the uterus won't push anything out though, i promise!

you have to picture the uterus like two pieces of buttered bread smooshed together - nothing is going to catapult anything out of there!