I've just started reading your story and I quite like it.
This had me laughing: “Gawd, I'm the size of a planet. Pretty soon forks and spatulas will start revolving around me,”
I also laughed at the you're-the-goose-I'm-the-gander exchange. I think you have a very effective sense of humor.
The fact that you infuse both characters with a sense of humor is very attractive to me, especially considering the delicate and possibly stressful situation they're in. Even without the tension of having a small child to care for and another one on the way, humor is something that can come in highly useful in a couple. So I'm really looking forward to reading more.