Ever the devout Catholic, Mel Gibson has begun sowing a new family with his girlfriend, Oksana Grigorieva, a relationship that was revealed only a month ago. The Russian singer is in her second trimester, according to TMZ.com. The Web site also reports that Gibson has already informed his estranged wife, Robyn, as well as his other children. Gibson's wife filed for divorce only last month. Grigorieva is currently shacked up in a house bought for her by Gibson.