Pictures of Pregnant Celebrities in Bikinis

Work it mamas-to-be! A pregnant Uma Thurman spent last weekend rocking a bikini while playing on a yacht in St. Barts with her 10-year-old son Levon. For expectant mamas heading on a Spring getaway, swimwear selection is always top of mind. Fifty-two percent of LilSugar readers showed off their burgeoning bellies in a bikini while pregnant. They're not alone. Take a look at some of our favorite expectant celebs who also sported two-piece bathing suits while playing in the sun.