Chicken pox

Just need advice from mom's ..I am a FTM , I got chicken pox 3 weeks postpartum, I was in complete isolation from the baby once we found out. Baby however developed rash yesterday night - 2 week s after her exposure, I am just scared about what to do. Pediatrician asked us to wait and see .

I am just so scared as it's my first born and just feeling so guilty to have exposed the baby .

Please let me know if any one had some experience handling a 5 week old baby with chicken pox.