7 weeks pregnant with chicken pox

Hi looking for any information
I am currently 7 weeks pregnant and have contracted chicken pox. I have been given Aciclover tablets which I’m taking however I am absolutely worried sick that something will happen to my baby has this happened to anyone and they have gone on to have healthy babies. As far as I know I am not immune I have never had chicken pox that me or my family remember nor have I been vaccinated any information will be helpful as I am so worried