Just came across this article on CNN:
http://thechart.blogs.cnn.com/2014/02/24/acetaminophen-in-pregnancy-linked-to-adhd-like-behaviors/?hpt=hp_t2

Summary: One research study is showing a link between taking Tylenol while pregnant (particularly after 20 weeks) with "ADHD-like behavior" in children, although they are not yet saying that it is a causal link.

Thoughts? My basic thought is: Ugh. Why does everything have to be so wishy washy. I wish there were a better way to figure out what was actually safe and what wasn't safe without all the guesswork and "maybes."