POP & Periods

I was on a Progesterone Only Pill (POP) for about 7 months. I had my period regularly on it and had no issues. I’ve been off of it because I lost my insurance after I quit my job. Its been almost three months and I still have not gotten a period.

Has anyone else experienced this? I start a new job at the end of the month and as soon as I get my benefits I’m booking an appt. I’ve tested at home a few times thinking I’m pregnant again but they have all coke back negative.