Gonal F and Cetrotide?

So ready for AF to show...which sounds crazy I know but this last cycle was quite a mess so I’m just ready for a fresh start. Negative beta today so come on AF!!

Looks like this next cycle they are having me do Gonal F 150iu daily and then also Cetrotide? I’m not familiar with the second one....any insights on what that does or how it works? Any success with those two meds and IUI? My IUI’s are covered so we are just continuing them until hopefully we get pregnant. His counts are great and essentially everything is normal for me.