TTC with PCOS

Madelin

So me and my fiancé have started TTC we never were preventing though. I didn’t have a period for 100+ days I went to the obgyn she did blood work and diagnosed me with pcos. I did a round of progesterone and got a very light period. I am now 4 days late and taken two pregnancy tests they were both negative. Anybody else have to take progesterone? If so do you have to take it every month to get a period? Any advice is welcome!