Pregnancy and Gallbladder Issues

Gallbladder attacks are caused by a stone or stones trying to pass through a small vessel. I doubt there is any way to make them smaller or to stop their growth. Your attack is over once the stones pass through. Your attacks are so horrible because the stone (s) are too large to smoothly pass. One day, you will get a stone that won't pass and you'll have to have surgery to remove the stone. Surgery will affect the baby because you will have to be anesthesized. That means baby will also be anesthesisized. You may not even be able to have surgery.

Your pain at the level it is now may also affect the baby because the baby will feel the affects of your body trying to deal with the pain. There are very few options for pain medication when one is pregnant.

Good you're going to talk with a doctor. Does this mean you haven't talked with a doctor about your gallbladder issues? If so, I urge you to see a specialist now. A gastroenterologist can explain the situation and how it affects you now. If appropriate, he can prescribe a pain medication. He will tell you how this issue affects your health now.

My mother had stones. The doctors smashed the stones with a devise without making an incision . Then they passed naturally. My mother was in her late 70's and had a serious heart condition and yet she recovered quickly.

I suggest letting this issue continue can result in a more serious issue. See a doctor.

I can't speak to the pregnancy part of it but my sister had her gall bladder removed with no complications at all.
See your doctor NOW, the last thing you want is to be pregnant and have some kind of emergency (see Marda P's advice below, she's a smart lady!)

If you know you have gallstones then get them taken care of sooner rather than later. I speak from experience. I was in the middle of trying to find out what was causing my pain and vomiting, not knowing it was gallstones, and had the appointments on the books when my husband had to drive me to the ER because I had an attack that was the worst I've ever had. After close to 2 days between the ER and hospital I recovered enough and stabilized enough to go home. I will be having surgery to remove my gallbladder soon. Once you get stones you will continue to get them forever. When you get stones your liver enzymes go through the roof. You risk your gallbladder getting infected or bursting. You risk your liver getting infected. I had to have a couple of rounds of IV antibiotics to prevent that from happening while I passed the stone. I am the type that will try anything before jumping to something as drastic as surgery but this time it doesn't look like that will be the choice I get to make.
If you're planning to get pregnant you do not want any attacks, especially major ones. You do not want it to turn into an emergency when you can take care of it as an outpatient procedure with little recovery time.