I am currently in my 9th month pregnancy, and we will be moving in to our newly purchased home next week.
Just had a PDI today, the new house smell is fairly strong, with the combination of paint, and glue and whatever else chemicals, I was a little uncomfortable after 10 minutes in the basement (windows were closed there), but after opening all the windows, it was much better! I suppose keep the air flow is important, and use "cooking" to fight down the new house smell...
However, since your friend just became pregnant, the first 3 months are fairly critical for the fetus development, it's probably safer to wait until after the 3 months...
