I'm not sure where to start, how about congratulations first of all :) First time mommy is so exciting!
I had gallbladder problems while I was pregnant with my first. I ended up in the hospital for a week because the baby was too big for them to operate on the gallbladder. We got it under control and after baby was born I was able to control it with diet. The cool part is I lost all my baby weight and then some very fast :)
I became pregnant with my second and had problems again, this time around 4 months along. It was so bad that they ended up taking it out while I was pregnant. It's a good thing they did because I was told that it was actually deformed and not attached correctly.
I will tell you that childbirth does not hurt as bad as gallbladder problems. I had no pain meds for childbirth either:) Just remember that when it's time to have that baby, you can do it :)
I don't know what to tell you about the blood pressure, I have always had normal to low. I would talk to your doctor and let him know how worried you are about everything and ask what you can do to make sure you and baby remain healthy.
Look up what you should eat while having gallbladder problems, there should be some good information out there. I know that had I eaten mac and cheese, I would end up in the er:(
Take good care of yourself and keep us posted.