So we refinished our floors last week and the final coat of the finish was put in Saturday. We left the doors and windows open to air out the house for two days and came home to sleep yesterday evening. I could still smell the stain/finish very faintly last night and DH could smell it this morning, so we have left the doors and windows open again today. My question is, is the smell due to fumes or would the fumes have cleared out during the two days we left everything open to air out. Would just a faint smell be harmful to the fetus?