Periods all over the place

Hey

Just wondered if any one else has periods that are not every 28 or so many days.

I have a 6 yr old when I was pregnant i gained 4 ish stone i was told I had PCOS I struggled for ages to get my weight down and I have over the last 3 years lost 3 stone, I went and had scan on my ovaries couple months bk and good news my PCOS has gone and my bloods came bk normal and all Good, just wish my periods would be regular so I knew when was ovulating,I am not with my son's dad any more, my self and partner have started trying for a baby of our own, he does have a child who nearly 3, like so advice help thank you all x