Huge pimple inside of my nose. Swollen and painful, also I'm 22 weeks prego!?

Do not squeeze. The best solution would be to see your local doctor. If this is not practical, a heated needle gently puncturing the pimple and allowing it to drain, assisted perhaps by inserting a tepid moist pack into the nose every 2 hrs for about 15 minutes might help, but if you get any new symptoms seek medical assistance immediately.