Hsg dye test and ultrasound

OneandOnly
I posted this in a few other groups but need/want as many replies as I can get: Anyone have experience with these and want to share? I'm a little nervous as she says the dye is uncomfortable and feels like cramps! I have to schedule these after(if) my next period starts next week. My obgyn said that a large number of people get pregnant 1-3 months after the dye test because it unclogs blockage, can anyone attest?