Newbie hereeeeee help please

Correnda

Okay so over the last two years I began to pick up weight out of no where. Then my period decided it wanted to start disappearing for months (like 3-4) at a time. I was thinking it was hypothyroidism because of the weight gain sleepiness all the time & loss of period. I got blood work done for thyroid levels and I found out some weeks ago I have a cyst on my ovary. I get ultrasound Friday & my results. I havent used protection with my DP in almost a year but still no pregnancy. I just missed my period for three months & it came last week after I found out about the cyst.