Post-childbirth FMLA leave: Taken in two parts?

Q. One of our employees recently immigrated to the United States. She is pregnant and told us she plans to take eight weeks’ FMLA leave immediately after the child is born. A few months later, she’d like to return to her home country to visit family for a month. In other words, she wants to split her FMLA leave into an eight-week period and a four-week period. Can FMLA leave for a new child be split up in this fashion?