my medicine effecting ttc?

I have question. I just wanted you ladies opinion. I need some help. I had an IUD and I got in removed in the beginning of February. March I had a normal cycle and my temps were high and my luteal phase was 12 days long. It was a good cycle. In April I got on a medication called Latuda for my bipolar disorder. I was originally on Abilify and had no issues. Once I got on Lutuda I started making milk again. I thought i was pregnant but i wasnt. Then i noticed my luteal phase has gotten shorter and my temps are super low and close to the cover line almost like im not making enough progesterone. I have never had this issue. I have always had healthy cycles and good temps and a good luteal phase. Do you think it was the Lutuda thst is messing up my cycle. I've noticed my cycles are getting shorter and shorter. I had a chemical last cycle cause my luteal phase was too short and I wasnt making enough progesterone I think.