First Tri- Feel Emotionally Detached

I know there's no normal- but I walk around feeling largely ambivalent. I know I WILL and DO care, I just don't walk around like I'm on cloud nine every day. Mainly I'm just uncomfortable and anxious that everything is ok. I think I'll feel better once the DNA test is done, but I just blase. 
Please don't mistake this for not feeling incredibly lucky, because I do. I know being pregnant is a huge fit, I'm just having trouble adjusting. I'm 38, I've spent 20 years trying not to get pregnant, so I just think I'm having trouble adjusting. 
What do y'all think? Is this normal? Do a lot of women during the first tri feel like - nothing?