I have GD controlled by insulin and am planning a home birth. Do your research and get a birth plan sorted also check out http://www.homebirth.org.uk/ for their section on GD. If you have any problems booking a home birth then contact AIMS who can support you in fighting your corner. I have employed a Doula who will be helping me stand up for myself if I get a cowbag midwife turn up, might be something which would help you?
Ive been warned of the risk of shoulder dystocia, but they actually dont treat it any differently in the hospital than at home, just afterwards treatment would obv need an ambulance ride rather than just go upstairs. they actually cant predict who gets SD and who doesnt tho. 75 % of SD happen to ppl with no risk factors, and only 4% of those with any risk factors have any problems. Theres a billion other things which could go wrong.
You may be offered growth scans which may lead to them warning you that the baby is large/large chested. Worth bearing in mind, but also remember that these scans are ridiculously innaccurate and their use has been questioned by many many professionals, they just dont have anything better to use as a test.
You'll need to monitor your levels during labour and medicate with sugar/insulin. I need to talk to my DSN about this, but I was planning on eating weetabix and glucose tabs if I get low, and just popping a bit of insulin in if i get high. And baby will need monitoring after the birth and watching for any signs of low sugars.
This is all very doable at home tho. I read somewhere that babies actually have slightly lower sugars just after birth anyway, its just that theyre never tested unless mum has diabetes, so slightly low might actually be totally normal. The way to correct low sugar is feed him, hardly rocket science. If he gets super low then youll probably need to transfer, but if youre monitoring him you can see if its starting to go low and transfer before its a total emergency.
You might have to stand up for yourself a bit, but its entirely possible to have a safe and sucessful home birth.
All in all, its worth being aware of these things, but for me the risk of a hospital birth is higher than a home birth with controlled GD and no other complications.
Could you ask to have the gtt repeated if youre not convinced?