So scared, I darent let myself believe it is true

Jess • Baby number 2 due 22nd April 2017 🙏👶🏽❤️
I had a miscarriage back in May, I've recently been feeling "ill", acid in my throat, upset stomach, period style pains, tiredness, loss of appetite. So I thought I'd take a pregnancy test.. 4 tests later they're all positives and yet I still can't bring myself to believe it is true.. Been searching all morning about false negatives and stuff.. I think I'm just scared to be happy and excited incase I lose this baby too.. Anyone else feel this way? I want to go get more pregnancy tests but my boyfriend thinks I've lost the plot ha