Hi, I'm Michelle And I'm 23 Weeks Along In My

Hi, I'm Michelle and I'm 23 weeks along in my pregnancy. The house I'm staying in has bed bugs and having had them around me before I know that they like me a lot. I'm getting bitten every night and now sometimes during the day. Is this harmful to me or my baby? What's the best way to treat my bites? What's the best store brand I can buy that works? Can I be the one who sprays the house or should I get someone else to do it? Thank you