Is there a way to test during pregnancy to see if my child will have schizophrenia?

No: There are currently no tests known that can identify someone at risk for schizophrenia even out of the womb. However a lot of work is being done on early signs and genetic testing.

No: This suggests that it is worth paying close attention to this child's diet and GI function, we know that one of the things inhereted in mental illnes are snp's -that result in enzymes that do not efficiently digest common foods, so watch for reflux, of constipation which would be early markers of poor digestion-optimizing nutrition and GI function is essential.