H.B.
Hi-
It's not that bad, really, the slightly uncomfortable part is when they shoot the fluid in your uterus. They will make you rock side to side so the fluid runs through both tubes. It can make you feel a little "crampy" - but it doesn't really hurt.
However, after I was done, I got really lightheaded and nearly passed out. Not sure why, but if this happens, the nurses are ready with juice.
I've had friends that have gotten pregnant after doing this, but alas, it didn't work for me. Turns out, we were lacking on my husband's end. ;) I'm assuming he has been tested?
Feel free to contact me personally- I went down the TTC path and can share many experiences, a sympathetic ear and a happy ending.
Good luck!!