Birth control before fertility meds?!?

G • Wife, full time step-mom (they are mine in my heart), and after 5 1/2 long years finally pregnant with our little miracle (with the help of science)!! 💕✨💕✨

Ok. So all test done. Low ovarian reserve. Exploratory laparoscopic for endometriosis done. Now I’m on first period after that. So I call to tell them I got my period and they started me on a birth control pill to take until my next appointment. I’m sure they have a good reason for doing this but has anyone else had to take birth control pills before the next step in this fertility journey? My appointment is only a week away but still.