I get my nails done every 2 weeks. I'm 30 weeks. also as long as you habe ventilation and you aren't getting high from the fumes you'll be fine
As long as you didn't put your nose into the nail polish or nail polish remover & felt high from it I think you will be just fine hun.
I'm six months pregnant too and I do my nails regularly. I just take my polish off quickly and open a window. I definitely don't inhale it, so be careful.
I'm not a Dr but I know we're told not to be around a lot of cleaners or ammonia type smells.