Thank you for the honest answers guys.

To clarify and answer questions here - my appologies now if they are a bit disjointed - as I have posted asking advice in the teeth and dental sections as well regarding my issues with my teeth but haven't explained here because I didn't think I would be allowed to - I have 4 impacted wisdom teeth, 2 of which have cavities the size of peas thanks to hyperremesis gravidarum wearing away the thin layer of enamel they had left (I was told the enamel was thin last time I saw an emergency dentist when they first started emerging 4 years ago and that I had to be careful when brushing my teeth not to brush for too long or too short a time).
The roots of my wisdom teeth are sitting right on top of the nerves in my jaw - the 2 with the cavities are causing swelling my gum (one wisdom tooth even has a recurring abcess under it too) which is also putting added pressure on the nerves.
Local anesthetic isn't an option either - though I am getting so desperate I am seriously considering it - as it only numbs the surface layer and not the areas near the nerves, I had16-30 injections per tooth for local for 4 baby and 2 adult molars as a 15yr old for braces due to overcrowding showed that local asn't an option for future extractions, my dentist and orthodontist both said that I'd need surgery under GA back then (this was 2003) to remove my wisdom teeth if they still didn't come through properly.

I have been going through the Royal Dental Hospital of Melbourne which has a short waiting list and low fees ($25 to be seen) as our local dental group has an 18 month waiting list for emergency work, including surgery, and usually costs about $100, and we can't afford the $800 to go private (which would be a better option if we were able to as the hospital where they do it is just around the corner from our house).

My GP and the oral surgeon know exactly how much pain relief I'm on but won't offer me any alternatives - the oral surgeon actual told me flat out yesterday that I would just have to keep taking that amount of pain relief until August next year when I would be "allowed" to go under GA for the surgery - and I hate having to take all these tablets, I don' know what it's like to be completely pain free anymore and I don't want to hurt my baby, but it's either I take the pain meds or I cant even get out of bed in the morning and that scares me.

I have been very confused about their stance on the GA as I have just been put on the waiting list to go under GA at my local hospital to have a camera put down into my stomach to find out why I get so much stomach pain (possible sever indigestion or silent reflux) since DD was born - and they know that I am pregnant and the general surgeon I saw said it would be ok to do and they would just monitor my baby while they did it.

I am planning on calling the dental hospital again in the morning but I wanted more information first so that I can try and get them to realise how serious this issue is, the only reason I got in to see them yesterday is because I rang up to inform them I was pregnant 2.5 weeks ago.

The horrible thing is that brushing my teeth is a major trigger for the hg - every time I brush I throw up while doing it and for 10 minutes afterwards, not a pleasant experience but I do brush after every meal because I know if I don't the pain will be worse the next day.
I am attempting to wean myself down again from all the meds - we went to the chemist today asked them for advice and they have given me panadeine extra insead of the mersyndol as I don't have any panadeine forte in the house, I have only had to take 3 today and 3 paracetamol so that is an improvement, the pharmacist told me that I can take 1 more of each before bed tonight. If I can keep it at that and still function then I might be able to make it through the pregnancy.
I see my GP again tomorrow regarding my pregnancy, so I will ask him to give the dental hospital a call as well, he has been giving me panadeine forte as I need it after each time I go to emergency when the pain is at it's worst and they send me back to him, maybe the dental hospital will be more willing to push the surgery through if my GP has a talk to them?