I think I'm in shock?numb?happy?

I went to the emergency department Sunday afternoon after my local doctor told me I was severely dehydrated from what I originally thought was a stomach bug, I had UPPER stomach cramps, was nauseated but not vomiting. I was given fluids IV... My was struggling to wee and it was extremely dark, like strong black tea and hardly any of it. I got Bag after bag Untill it became more dilute and my lips mouth and skin returned to normal. Well anyway they took blood to run tests and also tested the urine sample. The urine sample showed a positive bHCG, so when they ran the blood test it too was positive, 147. I'm going for another blood test today so they can check its rising but I've been told that I'm pregnant... I have appointment letters etc, I even took a home pregnancy test late last night and it was positive too but this just does not feel real... My fiancé and I weren't really trying but not stopping anything either (no BC), so this isn't an unwanted pregnancy at all, it is actually very much wanted by both of us. I still haven't told him yet, I was going to wait Untill after the second blood test today. I don't want to get his hopes up till I know for sure. But really shouldn't I already know for sure?? After a doctor confirms it with urine AND blood and I see it myself on the test at home? The home tests are a pack of three so I'm about to go do another one. Tell me is this really weird, being pregnant but not really believing its actually happening??? I feel so strange right now....

My LKMP was 9-13 march, 26 day cycle and it was normal. My period was actually due to start sometime today