A woman who is 11weeks pregnant learnt that she has bipolar affective disorder. She reveals the fact that for the past year, she has taken Lithium to threat this. However, when she learned she was pregnant, at 7weeks gestation, her psychiatrist switched her to Depakote (Valproic acid) and her bipolar disorder has been well. -What, if anything, are the risks to this woman's pregnancy?-Would the risk different if the woman switched medication at 4weeks gestation? How?- If she switched at 9 weeks gestation? How?-If she switched at 13 weeks gestation? How?- Are those risks any different if the woman was on Valproate until 7 weeks and then switched to Lithium?