This is the reason we are given IV
antibiotics every four hours
during labour, to give little one the best chances. If you get the IV then there will be no problems and baby will not contract it from you.
Honestly, there is no need to stress out. And don't listen to other people's horror stories. THE will NOT put you into pre-term labour. It will also not make your waters break prematurely. It is always present inside your body with no adverse effects.