there are no medical tests showing cannabis is harmful to fetuses...or harmful period, beyond the obvious potential lung probs.

i sometimes get nauseous from the pain pills i take and a couple puffs off the bowl usually takes care of it...my ex-wife and mother of our 3 kids (all college grads, btw) toked thru all 3 pregnancies with no complications or probs. she kept it well within reason and usually only for relieving whatever symptoms she needed relief from...iow, she never just sat and toked for getting stoned while pregnant.