Harder to lose weight after 2nd baby?

I’m curious if it’s harder to bounce back after #2? With my first I was back to my pre-baby body in less than 5 days without breastfeeding. My mom also bounced back a week after having my sister, but after she had me (her 2nd) her body never went back to normal, despite breastfeeding. I’m hoping that I’ll be able to bounce back after #2, but I realize it might be harder. Any experience here?