my abdomen fat is killing me, it wont go away

I also really want my belly gone I had a really flat abdomen in my teens and my thighs were wear I carried my excess weight. I had my first baby at 18 and I've had 3 more since then and my abdomen is now droopy looking and I've been doing the calorie defieciet for 2 months now and lost a total of 19 lbs so far and all my weight has came off my boobs and thighs and *kitten*... Although I'm really likeing my thighs right now I am getting a bit upset with the fact that I have this big belly I've been doing various ab workouts but can't seem to shed my mid section so if you or anyone finds some majic secret to getting rid of it please let me know lol