After 4 years TTC, support needed

I've taken pregnancy tests and all said positive almost instantly. I have a doctor's appointment next Tuesday, but I have PCOS and haven't had a period since February 9th. I have no idea how far along I am or if it's something else. My husband has been through a miscarriage with an ex so he's really nervous and stressed. I understand where he is coming from, but it's making me more nervous. When I put my hands on my tummy I feel calm though. I could just use some gal support, I'm excited but also scared.