In Ancient Times, Newly Married, When My Adorable Son Came Knocking

Hua Jieyu receives an order to transmigrate to the Great Jin Dynasty, only to be carried in a bridal sedan the very next day and married to the legendary sickly Third Prince! But! What kind of sickly man is this vigorous and virile?! That alone would be bad enough, but where did the five-year-old son who bangs on the door first thing in the morning on the second day of the wedding come from?!!!