30 weeks preg. Have a deer tick embeded in my belly held alchol on it but it wont come out. Not sure what to do? Hospital? Or try pulling out.?

Remove it. Cover it with liquid soap or lotion for a few minutes, then grip it and twist it to remove it completely. You can go to the hospital and they can remove it.
See below. If you can't get it out, have someone else. If they can't, see a physician. A deer tick needs at least 48 hours embedded to transmit any disease like lyme, this the sooner you get it out, the better.