Me i think its a hormone think
I also had a very nice body an butt then I got pregnant with my daughter lost a lil of it got pregnant with my son wen my daughter was 2 found out I was pregnant with my 3 an finally in February each time I lost a lil of my butt. But I will give u a tip to try an get it back u will have to work really hard if u want to back they have excerise work outs for ur butt
Hormones can definitely change the way we are shaped.
Boys make us nice and thick at the bottom and girls lot of times will take our butt. Our hormones help direct our fat to go to certain lipo cells in our body. Take flaxseed oil vitamins AFTER AFTER AFTER you have ur baby. If you take it while you're pregnant you could develop a subchorionic hemorrhage like I did. it's basically a bleeding hole in your uterus while your baby's in there. It didn't put my daughter in danger but it very well could have any put me on bed rest. Then only take one a day even after your baby. It's a great fish oil alternative for the Omega fatty acids that bring your bottom half back, And help your heart. Good luck you still look good don't worry your beauty isn't in your booty.