Menstuff® has information on well-known unwed mothers.
Jamie Lynn Spears, 16, announced her babe in OK! magazine -- which will eventually net her a cool million bucks.
News of fallen "Idol" Jessica Sierra's pregnancy broke -- while she was in jail on a disorderly conduct charge.
Nicole Richie began eating for one after being knocked up by Joel Madden.
Poor Bridget Moynahan got her football in the oven from quarterback Tom Brady -- who then dumped her for Gisele Bundchen.
Miss Jessica Alba announced she's having a little bundle of Cash Warren.
Divorcee Meg Ryan adopted a baby girl from China -- who needs male?
Calista Flockhart stayed slim -- by adopting her son. Then she hooked up with Harrison Ford -- but no ring!
Singer Charlotte Church had a boy with rugby star Gavin Henson.
Ginger Spice got hot with writer Sacha Gervasi -- leading to daughter "Bluebell."
Angelina has four kids, but no current marriage certificate.
Fantasia has a daughter, but no husband.
Halle Berry dumped two husbands, then couldn't resist sexy model Gabriel Aubry, and is having his baby.
Baby Spice had her own illegitimate Baby Spice in 2007.
Jaime Pressly popped one out with fiance Eric Cubiche.
Michelle Williams had a little joker with Heath Ledger -- then they brokeback -- er, broke up.