I had been warned against painting whilst pregnant, I wanted to paint the nursery as it was dark & dingy looking & sort advice from my OB, he said absolutely not as the chemicals in the paint could cause grave issues particularly if it got on the skin & was absorbed into the baby.

So DH had to do it by him self well ventilated but not effecting me, needless to say it took him over 4 weeks to get it done. Like you I wanted to help but it's not worth it... you can search on the net & find a few answers around painting whilst PG most say it's not advisable.

Hope that helps