Hystosalpingogram??

I don’t know if this is the right place to post but I am gonna ask. My fiancé and I have been trying for 2 years no luck started on the journey to see what’s going on I am scheduled for a hystosalpingogram on 8/9 to see if my tubes are blocked I am curious as to if any of you ladies have ever had one and if so what to expect from it pain wise if it hurts.