D.H.
First off, sounds like you have the diabetes under control......so that is good......as for the other........how do you feel? What do you want? Get on the internet and look up somethings.....educate yourself on what is going on.....I've never had pre-term contractions, unless that is what they called fake labor back in my day...............then you decide.......obviously you don't want to hurt the baby.....but you also don't want it to be born to soon..........
This is your body and baby, take control of your health and welfare......get the information, so when you talk to the doctor, you can show him you know what is going on and understand what he is telling you. Also, if you don't think they are listening to you or doing what they need to do, tell them so.......I think it's a little late to change Dr.'s but you can tell them you would not be recommending them to anyone and why. (after your baby is born of course)
Take care and maybe you should make a date for this so your husband can get off the road..........you might want him to do that anyway due to this issues you are having.......hopefully you can get someone to watch your daughter until family can arrive if necessary.....
Good Luck and congrats on the new little one.