We have 2 kids (one of which just turned 5 months) and we have never cut back on our reptiles. It all boils down to sanitation and responsibility. Clean yourself and anything which comes into contact with the baby thoroughly and routinely. If you have the space to do so, keep them in a separate room of the house to mitigate any introduction of anything potentially harmful to your baby. You will read reports everywhere which state reptiles and babies are bad, but mos of those are from authors with factual information with a bias twist to the true threat potential. Just keep clean and practice good hygiene and you will be good.

Interaction between yourself/other adults and your baby is far more dangerous than merely owning snakes.