diff --git a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/ApplyOrderFacade.java b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/ApplyOrderFacade.java
index 79ce515..5c9b7f5 100644
--- a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/ApplyOrderFacade.java
+++ b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/ApplyOrderFacade.java
@@ -569,7 +569,7 @@ public class ApplyOrderFacade {
                     String d =  "1".equals(sieveApplyOrderModel.getFetusNum()) || "4".equals(sieveApplyOrderModel.getFetusNum()) ? "D" :"";
                     request.setTubeType(sieveApplyOrderModel.getYpglx() + d);
                     //  孕周（格式：18w+1）注：“w”必须小写，“+”号后面的天数必须是0~6
-                    request.setGestationalWeeks(sieveApplyOrderModel.getUltrasonicNtWeek());
+                    request.setGestationalWeeks(DateUtil.getWeekDesc(patients.getLastMenses(), new Date()));
                     //  证件类型（01：身份证、02：护照）
                     request.setZidcardType("01");
                     //  孕妇联系电话