Jennifer Garner flew solo on Mother's Day -- with her three kids, of course, but without estranged hubby Ben Affleck.

Of course, the two are in the middle of a divorce, but Ben's been good about hanging with the family, making it to church every Sunday and, seemingly, co-parenting effectively. BUT Ben was absent on Jen's big day yesterday and the mother-of-three took her brook to church and Sunday school on her own.

Seraphina, Violet and Samuel attended Sunday school and were treated with Otter pops, while Jen enjoyed the Mother's Day service with a friend.

A recent report claims Jen's ready to start dating again and we can't help but wonder who the lucky man will be! Can you imagine Jen with someone other than Ben?!