I know a few folks will probably go "Ewwww.." But, I have never believed Maxie had a miscarriage. I think Britt actually stole the fetus Maxie was carrying and Dr. O implanted it into Britt. This scenario was done several years ago on All My Children. Erica Cane thought she had lost her and Jeff Martin's baby. But, it was taken from her by Dr. Greg Madden (played by IAN BUCHANAN), who implanted the fetus into his wife and raised the baby (Josh) as his own.
I hope that, if Lulu and Dante learn baby Ben is really theirs, Lulu just might realize how nasty and horrible she has been to Maxie. And, maybe the judge might overturn his ruling and allow Maxie to be a proper mother to her baby.