Hsg dye test and ultrasound

OneandOnly
Ok so I posted this on another group but wanted to put it here to for more responses; 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?