I quit smoking using
Chantix as well. I am only 1 month non-smoking. I only took
Chantix for 9 days as on the 9th day I found out i was pregnant. So I was non smoking and pregnant, to only two weeks later miscarry. I am not too sure if its from the hormones, or from the symptoms of not smoking, but i was extremely irritable, it was almost to the point that everything i that came out of my mouth was snappy. I developed insomnia right from the get go from Chantix.