Interesting. My clinic (a rather large, multi-branch clinic, many RE doc clinic that is heavily involved in research) doesn’t have women lay down for a while after the IUI. There’s research indicating that there is no difference in the results. I haven’t tracked it down yet, but I did find this helpful website:
IUI FAQ - Fertility Plus
I’m curious about people out there who have had success WITHOUT lying down afterwards - and honestly, I have no intention of doing so, because I trust the research. And wow, did this thread get hijacked. =)
But, please, I mean NO disrespect to anyone who feels more comfortable staying prone for a while - I can understand why! If I thought it would help, I’d do a handstand for an hour afterwards!