Effects of Meth use during first couple months of pregnancy?

Hmm, is the birthmom claiming to be clean? This is a very addictive drug and it seems hard to believe that she quit but you never know. My son was exposed in utero and while he was a pretty sick kid the first year with respiratory ailments and needing to be on oxygen(because we lived at a high elevation) he now is just fine and healthy. We did a lot of work on him though. Ortho-Bionomy and supplements. He on target developmentally and a very happy kid.