Nervous

So I’ve kinda known i was pregnant especially when i was waking up all last week and this week nauseous, I’m just nervous to even get my hopes up or get excited bc i had a miscarriage a few months back. I don’t want to get my hopes up if the same thing is going to happen. I don’t know how to get past being scared and nervous till i actually have the baby at this point. Im praying for a healthy baby but i just don’t want to get excited yet. I feel horrible and have had an internal conflict with myself all day about i should be happy but what if i get happy and the same thing happens. I just needed to vent.