All my life up till the end of university I had symptoms of PCOS, though I'd never heard what that was at the time. It never bothered me though because they weren't symptoms you really notice. I had almost non-existent periods which in my opinion then was great, and I had a bit of excess facial hair which could be symply removed. Then one night my partner and I were not as careful as we should have been and nine months later we had our first child. Strange that this happened from only one night of carlessness considering PCOS is (from what I've read supposed to case infertility). After the baby was born though I gained alot of weight. My periods came back at a regular 26 days from the first month after the baby was born even though I breastfed, but I had terrible pains about 2 weeks before every period and when they did an ultrasounds they found 30+ cysts on both my ovaries, so they diagnosed me with PCOS though they didn't give me any ideas on how to lose weight or stop the terrible stabbing pain I got. Anyway, my question is that now my son is 18 months old and on a romantic weekend about a month ago my partner and Iwere again less than careful, right around the time when fertility calculators say I would be "most fertile". My period was due to come 5 days ago yet its not here. I took a pregnancy test today and it came back negative so now I'm terribly afraid that I've suddely stopped ovulating becuase of PCOS. Does anyone know what happens when you become infertile, if thats the way you'd say it. Like, do your periods just stop all of a sudden?