sunglasses malibu beach 4th of july Kimberly Stewart pregnant benicio del toro

A very pregnant Kimberly Stewart didn't look too happy on Independence Day, though we do admire her independence!

Stewart, 31, daughter of Rod Stewart, is going through her pregnancy solo.

DelToroStewartNotThereBaby230.jpgHer baby's daddy is actor Benicio del Toro, 44, but the two are not together romantically, and he was not with her for the 4th. In fact, Stewart and Del Toro have not been photographed together once since Kim announced her pregnancy in mid-April.

At the time, Del Toro's rep said: "Benicio is the father and is very supportive. Although they are not a couple, they are looking forward to the arrival of the baby."

Kim did celebrate the holiday with someone -- friend and fellow rock child Jack Osbourne. But while Osbourne cuddled with his girlfriend, Kim was on her own.

See pics of Jack and his lady after the jump, and more photos of Kim's growing baby bump in our gallery below!