Smaller baby bump?!

dev ✨

This might sound stupid but my belly seems smaller to me. I'm 13 weeks with my second baby and I did have a pretty decent sized bump but not so much the past couple of days. My morning sickness is nearly gone too which could just be from the transition into second trimester. But the lack of bump and pregnancy symptoms is making me nervous. Help! How would I know if I were moscarrying? I don't have any cramping or bleeding.