First off, congrats on your newest little bundle of joy!
Your little one isn't even 2 months old, give your body a little time to adjust as well. My little one will be 3 in March, and I still have baby fat to lose!

She is my 5th as well. My older kids are 20, 18, 16 and 14, and then my little surprise as 40.
This is a great place, full of advice and humor and the occasional reality check we all need from time to time.