My daughter ran a fever of 101.0 when she had her 2 mos shots she had four in the thighs and one orally. I contacted her endo and he advised me to stress dose her for 24hrs. We did that and she still ran the fever over 100. for the next day but by that night her fever had broke.  I did give her the tylenol as instructed by her endo also.  As I am a HUGE worrier myself! Hope this helps, and my prayers will be with your baby.