http://www.babycenter.com/0_herpes-during-pregnancy_1360877.bc
Since you had a C-section, your baby could not have gotten infected. In rare cases, a pregnant woman may transmit the infection to her baby through the placenta if she gets herpes for the first time in her first trimester. Your pediatrician can test for it, if it will make you feel better, but it would be almost impossible for the baby to have gotten it from you.