I had irregular periods for 8 years before I got pregnant with my now almost 3 year old. As soon as I started having periods again after birth, they were magically regular. Every month. I’m now 10 days late. And 3 negative pregnancy test. I have no lifestyle change or extra stress. Is it possible that my pcos is making me irregular and infertile again? I’ve been regular for over 2 years now. It took me 8 years to get pregnant and now I’m afraid it’s going to take a long time again if it ever does happen.