Surely if you are alone with someone then you are alone!
As you both work then it is only fair that your husband helps out at home (irrespective of whether you have Crohns or not-and doubly so because of the flair)
If your husband wants a baby (you don't express how you feel about having one ?!) then he is going to have to appreciate that he is going to have to up his game a bit, you are putting in a huge amount of effort for something that he wants-what's he doing to contribute(barring the obvious )?