Chicken pox!!

Danielle • Mumma to 3 beautiful Boys 🥰
I'm 18+4 and I'm so worried.. I've been hanging out with a friend for a couple of hours for last 2 days and she just told me that her little boy has been around another little boy who has had chicken pox. I had them lightly as a baby and my husband had them.. her little boy has been around me but hasn't touched me but the mum has and the little boy hasn't shown symptoms yet but the school only notified them of the other little boy on Wednesday.. is there a chance I will get them. I'm so worried as it can do serious harm to my unborn child!!!