No, 3 would have to be it for me - my DH has asked about a fourth only because I keep saying I want everyone to have another relationship and if he lets me have three then whats to stop me wanting four - to which I said I would get my tubes tied at the third and he asked why and I said: "At that point I would have to take your wishes into consideration."
To be honest with me and the diabetes there would have to be a stopping point somewhere and I told DH I wanted three before we got married so three it will have to be. He asked the other day if I would consider adoption which to me means he has not totally written off a third - he's just really scared of the pregnancy. I can work with that. I don't want it to be: "I just don't want a third."
We have talked about it more since I last wrote here, but I think he knows until the medical issues are sorted out I must not get pregnant. I don't think he is quite aware yet how much I want a third yet though and how hard I have been working to get it right so far.