My sister is 8 months pregnant right now and I noticed that she is so sensitive, stubborn and nagger. I know it is normal because of hormonal changes but sometimes it is very alarming. I know her behavior is normal for a pregnant woman due to hormonal changes but I think she is too much. We had a fight yesterday and she told my brother that she don't want to see my face again and she don't want to talk to me again. I tried to reach out to her but she's not answering my call. I got pregnant twice but the only changes I noticed is my body, sleeping patterns, sensitive to foods and sense of smelling. Do you believed that there are behavioral changes when you are pregnant?