Am I overreacting?

So I am 7 wks along and have recently discovered the effects of third-hand smoke and how dangerous it is for pregnant women. My hubby smokes and noticed that I refuse to kiss or touch him after he steps outside to smoke. He asked me why so I told him a lot about third-hand smoke and that I was trying to avoid being exposed as much as I possibly can and he got a bit defensive and said "What, now I can't smoke because your pregnant?" I responded with "It would be better, especially after the baby gets here." He scoffed, walked outside and proceeded to smoke! WTF??? Am I wrong by trying to limit, as much as possible, the nasty chemicals from cigarettes that could negatively effect my baby?