Missed period

I had sex Sept 2 (no condom, pull out) and again Sept 3 (condom), so about 11 weeks ago. I went ahead and used a Plan B to just be safe and that was Sept 3 or Sept 4.

I went to my OBGYN around Sept 12 and they took me off birth control to see my body‘s reaction and if certain symptoms persisted, and I was diagnosed with endometriosis.

I had a period September 12-16 and October 12-17. My period predictor said my period should’ve started last week (11/10), but I’ve not gotten it.

I’m not really sure what to do, but I don’t have insurance right now so I can’t go see my doctor. Is this something to worry about or is this just hormones leveling out since I’m off birth control?