Very irregular. It came back on Tracey's 11 month birthday and my first cycle after that was 40+ days, then high 30s for a while. It didn't get back to my regular 28ish until after I stopped at 15 months.
AF still hasn't come to visit me. I was very irregular before though (like 90 day cycles) so it's possible my body is just doing it's normal wonky thing.
My big boy is bounding towards 4! Baby brother coming in October!
Mine showed up in July - lucky me. It's been very regular since, until this month, when it was a few days late (just enough that I was starting to panic even though I didn't see how anything could have happened!).
Irregular (but not as crazy as before I was pg).I didn't get af until DD was around 10 months old...they've seemed to become more regular though as i nursed her less and less and finally weaned her.
I had AF exactly 21 days after I stopped BFing each kid (4 months with Luca, 3 months with Lila). I got pg with Lila the cycle after my first AF. It was like clockwork! I had NEVER been regular in my life...
Re: BFing & AF