Ottoette, your daughter was born on my husband's birthday!
Anyhow...First time around AF returned at about 6 months--two months after I started solids. Second time it returned just before 12 months--four months after I started solids. Third time it started at 10 months--two months after I started solids.
It tends to take me by surprise, but I don't pay a heck of a lot of attention. Oddly, it's far more regular for me now that I'm breastfeeding than it ever was before I had kids.