given your pregnancy being concurrent with edema, infection, cellulitis, elevated (i presume) liver enzymes, etc, i would strongly suspect an issue with zinc. pregnancy places a high demand on your zinc resources. i'll dig out another study showing that zinc can drop during pregnancy even when supplemented. but for now, a study on liver enzymes in zinc deficiency:
Dietary zinc deficiency induced-changes in the activity of enzymes and the levels of free radicals, lipids and protein electrophoretic behavior in growing rats.http://www.ncbi.nlm.nih.gov/pubmed/12049850
"The present study was conducted to investigate the effects of adequate Zn level (38 mg/kg diet, as a control) and two low levels that create Zn deficiencies (19 mg/kg diet, 1/2 of the control and 3.8 mg/kg diet, 1/10 of the control) in growing male and female rats for 10 weeks... Zinc deficiency increased (P<0.05) liver aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities in a dose-dependent manner..."
have any of your docs ever tested your serum zinc levels?