J.C.
It sounds like perhaps a playgroup with other preschoolers your son's age might also help. Hopefully this won't come across preachy, but it really is best to try to get in good shape before starting a new pregnancy. I know it can be hard to find the time and energy to get in shape, but starting a pregnancy when one is already out of shape can lead to a very difficult pregnancy (I know, I've had one when I was overweight-and it was absolutely miserable, so much so that at times I literally thought I might not survive it. I couldn't even get myself in or out of the bathtub I was so big and had so many complications). I'm proud to say that I have since lost 40 lbs, am down to 160 lbs now, and am still losing weight. I have set a goal for myself of where I want to be before starting a new pregnancy and I consider that my first gift to my not-yet-conceived baby. Best of luck to you.