15 weeks and feeling FAT!!

I don’t get it. I’m down roughly 20 pounds from where I was when I was pregnant with my first. I didn’t pop until 20 weeks or so with him. I’m 15 weeks now, and definitely starting to show. But this time I don’t feel cute and pregnant. I just feel fat. I’m thrilled to be pregnant again, we wanted a second child, and I thought for sure I’d be feeling great with 20 less pounds this time around. How can I get past this and just enjoy being pregnant again?!