Based on the provided reference from Jane the Virgin, the direct answer to whether Jane and Rafael had more kids is somewhat complex. Initially, Rafael tells Jane he doesn't want to have more kids because he feels his life is full (5x14). Jane accepts this decision. However, the narrator hints that Rafael might change his mind in the future. Because there is no further information provided, the definite answer remains:
No, at the time of Rafael's statement in season 5 episode 14, they did not have any plans to have more children, with Jane agreeing to Rafael's feelings about their family being complete.
