I agree, I'm glad that the HSG is over for you and that you are now one step closer to getting to the answer. I had several polyps removed when my dr did a lap and hysteroscopy on me. They are usually relatively small in size and shouldn't be too much of a problem....however, if in the area where implantation can take place it can get in the way and cause problems with embryos trying to implant in that spot.
Keep us posted and rest well!

Kim