5 weeks & 6 days, low levels

I had my blood drawn yesterday and my levels came back 4400. I'm really nervous and I am going back tomorrow for another blood draw and to check my progesterone. Is this normal? Should I worry? My hubby is excited, my in laws are excited, I want to tell people but I'm terrified at the same time. My stress & anxiety is through the roof. My oldest went through chemo in 2015 and my three year old was born with VSD and I had low progesterone with him. Advice, good thoughts, calming methods! HELP!