My story is a little different... I had pain & issues w/ food. So, I went to the doc - they told me it was heartburn... I found out about a month later I was expecting. So, I was taken off the heartburn meds - due to unknown side effects on unborn babies.
I did deal with the pain for my 1st trimester and lost about 15# since I always felt sick & couldn't eat much. After my 1st trimester I got to feeling better & made it through my pregnancy. I joked about "if boys make me feel this way - I don't want anymore boys" since it happened to be my 1st boy.
Around Thanksgiving - I ate pumpkin pie & it about killed me (I was in bed curled up like a ball, crying, sweating like mad, but freezing like I was outside in the snow w/ nothing on)... after about 3 days, I was able to eat again & ok. I ate french toast & again same issues... I liked it to spices. So, I cut down on spices... that worked for a while. Then it was fatty foods - I cut them out & again it worked for a while. Then just before valintines day (when my little guy was about 8 mo old) - I wasn't able to eat or drink anything w/out issues.
I drove myself to the doc - who sent me to the ER... I was admitted & had to have my galbladder removed. They did an oral scope first to remove the galstones from the bio duct & then removed the galbladder a few days later. The galbladder was remove using a few very small cuts... I have 3 small scars from it. One under the belly button - it goes up & down & is about 1/2", one under my rib cage - it goes across my tummy & is about 1" long & a really little one on my right side. As long as the galbladder hasn't hardened, they should be able to take it out the same way.
As to when - they don't like doing the surgery when you are w/ child. They are trying to get you through your pregnancy or atleast till the baby is safe (typicaly at least 34 weeks but prefurred 37 weeks). Then they will most likely do the surgry & get that bugger out of there.
Sometimes if you watch what you eat it will help with the pain. Try to cut out spicy & fatty foods... they seem to increase the demand on bio which is what is being blocked by the galstones. So, if you eat less of them, they bio doesn't need to flow through as much & helps ease the pressure & thus the pain.
I don't think the pain is stressing the baby, but that might be something that you can ask your doctor. Also, you might want to ask him how long that want you to go before they will do something (Meaning are they waiting to a certain week before they can do the sugrey or are they hoping you can hold out till the baby comes naturally.) Also, ask them if there is anything you can do to try to reduce the pain other then alter your diet, they might be able to suggest something.
I wish you luck - I do know the pain can be unbearable & my heart goes out to you!!! Just try to remember - the docs are trying to protect the baby as well. So, try to keep in contact with them so they know if anything changes w/ the situation.