At my last ultrasound the doctor told me that may have to deliver the babies at 37 weeks because of…

At my last ultrasound the doctor told me that may have to deliver the babies at 37 weeks because of an antibody that I have . They don't it to affect the babies . So naturally I tell my fiancé , and he gets on the phone and told his mother . Who has the biggest mouth and can't hold water . I dont know why but I immediately thought to myself , I'm not telling anything else about the pregnancy unless it's an emergency . I just felt it could've been between him and I . Am I wrong for that ?