Jennifer Lopez & Marc Anthony's upcoming projects do not include having a baby

Sources spilling to Star Magazine say Jennifer Lopez and husband Marc Anthony upcoming projects do not - unfortunately for Jennifer - include having a baby! Marc already has kids - a daughter, Arianna, 10, with an ex-girlfriend, and sons Cristian, 4, and Ryan, 2, with ex-wife Dayanara Torres. "Marc says that with his career and his existing kids, he can't devote time to a new baby right now, and that can't make Jennifer happy," the source adds.

The Dec. 1 birth of Violet Affleck, J.Lo's former fiancé Ben Affleck and his wife, Jennifer Garner - may have added extra tension to what sources say is a heartbreaking sore point between Lopez, 36, and Anthony, 37. Garner, 33, gave birth at a Los Angeles hospital after labor was induced Wednesday night, according to Us Weekly magazine. And, according to rumors, Affleck stayed all the time with his beautiful wife.

Lopez longs to have a baby with Marc, but he seemed to begin dragging his feet on the subject after their June 2004 wedding. "Jennifer has wanted to be a mom ever since they tied the knot," says a source. "But while Marc told her he wants children with her, every time J.Lo brings up the subject, he says the time isn't right."

A friend of the couple says the issue must be especially stressful given that "Jennifer has a strong mothering instinct. Having a baby would mean more to her than winning a Grammy or an Oscar."