Before I was pregnant I fit into size 8 jeans....

Now I have massive horrible stretch marks on the top of cellulite city. I think I'm about a size 12 now, maybe even 14 (don't know for sure coz I can't really try on normal pants coz still preggers, only for 2 weeks though.... yay!!!)
How the hell am I going to get rid of this bum?????
Do I have to work it all off or will a bit of it go away once squeeky is born??

Please tell me it'll just go away on its own...... that would really make my year!!!!