Well this is concerning on a whole host of levels...
The only pain-killer safe for women to take during pregnancy... may cause kids to have emotional issues, and hyperactive issues.
It's something called Paracetamol, and it's the active ingredient in all sorts of over the counter pain killers, however, research now says it could lead to asthma, infertility, and even autism.
The University of Bristol looked at 14,000 children aged from six months to 11 years to come to their findings...
Of course, if you've taken these meds during pregnancy, this is somewhat concerning, so you'll want to read more - and talk to a doctor for sure.