Please help me, I need advice!

So my husband deployed a few days ago, and he will be gone for 6 months. I found out today that I am pregnant (via faint positive test). Should I tell him tonight, wait until missed period (due in 5 days), or wait to tell him until I have bloodwork confirming the positive? He’s already in a stressful environment, and I don’t want to put more stress on him by announcing something to him that ends up not working out. I think I also have anxiety about announcing to him, because we had a failed pregnancy last year. Any and all advice are welcomed and appreciated! I’ll post my faint line below