Unsure about this pregnancy

So I already have a daughter so this would be my second kid. I just feel like I’m not happy with being pregnant, I know every kid is a blessing and I’m trying to keep reminding myself that. I just feel I was so happy and content with my daughter and my SO, just the three of us. It seemed so perfect. I guess I’m just looking for reassurance this is hormones or even normal. And I’m not the only one that is going through these thoughts. Please no harsh words I already feel terrible for these feelings..