I'm guessing ... 68 lbs, 49 oz., and 15 inches long.
Well, being that you were 500 lbs before the pregnancy, I assume you'll be about 800lbs by the end. Ohhh, the excitement.
(Note: this was ye olde inside joke, about the 500lbs. Though, it's been awhile, and it probably isn't even funny anymore, but blarrrrgghhh to you.)