I had a this test done aka HSG last year and it was not painful at all. As Belinda said it was just like a pap smear. They do say though the pain depends on how you are internally. If you have damaged of blocked tubes it will be more painful due to the pressure of the dye trying to get through. My tubes were crystal clear so it went through easily and painlessly. Good luck and i hope all goes well.

As for DP, as BW said, remind him of all the horrible tests we go through and that should make him feel much better about the SA... haha