Congrats!!!...A baby on the way is a true blessing....
Like the others have said...just keep an eye on what you eat..and I think you will be suprised that with the LC knowledge you might not gain as much as you think. Get some true nuritional advise from a nutritionist. Let her know your concerns..and take it from there....

Good luck with your pregnancy...
BTW...I was 245 when I got pregnant the second time and I never knew about LCing...I lost wieght the whole pregnancy...and gave birth at 221. to a healthy 8lb baby....