Covid and pregnancy

Hi all

I am fairly certain I am Covid positive as I know I’ve been exposed (yes I am social distancing, wear a mask and practice good hygiene but do have to work so please don’t judge). Getting tested today so I probably won’t know until I’m not contagious anymore lol. I’m mostly worried about my baby! Does anyone know if Covid can harm the baby? Most people said it’s only a concern if you have it closer to birth as they don’t want to expose the baby to you if you’re contagious. Still waiting for my OB to call back