Help!

So I made stupid stupid decision to stain a dresser that I am doing for a client. I am 11 weeks pregnant and now I feel so guilty I wish I could go back in time and not do it. I was only staining for about 20 minutes and I had my face covered with my shirt 90% of the time but I still smelt it a few times when my face wasn't covered. I had a fan blowing on it and the smell didn't stay around very long. I just feel so guilty. Why would I do this? I am always so causious on my surroundings now that I am pregnant and I made such a stupid mistake! Any one have any reassurance for me?