Loose skin

Ekaterina • Have two beautiful children. Anastasia 7-25-16 & Collin 9-26-12 and having another boy that is due on May!!:)also have incredible boyfriend 5-27-15
So this was my second child and Iv noticed after I gave birth to him I got loose skin from my stomach to my ass and legs... It's like when I was pregnant it lifted my skin on my ass and legs... Does this eventually shrink down ? And if it does how long does it take to go away ? I didn't think this would happen because I was doing squats every single day during pregnancy but stoped at 35 weeks because it was too painful then I gave birth at 39 weeks so she's only a week and two days old... Anything I can do to get rid of this loose skin??