We're a Little Late, Folks Turnabout : Season 1 Episode 4

Penny informs Sam that her monthly visitor is overdue to visit HIM! Could Sam become the first man to become a mother??? A way too intense visit to Penny's gynecologist is the next step, with the horror stories of the mothers to be in the waiting room putting birth in a new perspective for him now that HE would be the one giving birth. The Doctor examines him. She asks him if he has been under any stress lately since that could explain the late period. She says that the results of her exam and blood tests will be due in a few days. Penny and Sam have a good laugh when Sams tells her that stress might be a cause for the delay. Changing bodies and genders has certainly been stressful for them both! Sam can only wait for the test results to find out if he is... PREGNANT!