Difference between pregnancies!?

With my son at this time (first baby) I was showing and a lot bigger. I’ll as a pic below!

16 weeks.

Now pregnant again second baby I got pregnant 8 months postpartum. And I’m 16 weeks with hardly any showing just maybe a little bloated look! I thought you are suppose to show more with your second? Kinda weirded out that I have no bump yet!!!!

Me now with my daughter 16 weeks

Anyone else had the opposite like this?!