Judy and Ham couldn't have been born 9 months apart. The closest any two siblings could be born between separate pregnancies is 10.5 months. Any woman needs to have 6 weeks to heal from pregnancy and childbirth before she can even engage in intercourse again.
Siblings can be born 9 months apart because some babies are born prematurely.
Siblings can be born 9 months apart because some babies are born prematurely.
Judy is supposed to be the second born of the Tobin kids, which means she's older than Ham. In the previous episode, Judy celebrated her 16th birthday, which means Ham is still 15. Yet Ham is seen driving the family van.
According to Ham, he did his "cake lady" work at night in the kitchen while everyone was sleeping. This would be impossible to not be discovered without someone in the house overhearing him or discovering him if by chance one of them got up to, say, use the bathroom. There would also be the noise regarding the dirty dishes needed to be done, whether he washed them by hand or in a dishwasher, and not to mention Ham's obvious exhaustion and fatigue of not sleeping at all during any of these times.