I was looking through my records for the babies born Sept 28 and I realized they only got 1 CD&T. :duh DANG! I don't know how that happened so what do I do now? They got their first shot at 3 weeks but never got the rest of the series. Since it's been so long should I just start over and give them all 3 shots or pick up where I left off and give them 2.