The celebrity baby boom is in high gear: Kate Hudson and Victoria Beckham gave birth over the weekend, and Natalie Portman had her first child last week.

Since premieres and awards show don't stop for pregnancies, we've seen a lot of expectant Moms on the red carpet of late. While mere mortals tend to live in flats after the first trimester, these die-hard glamour gals wore stilettos right up until the end of their terms.