Hey can you please tell me how long does morning sickness last? What is the cause of morning sickness, and for how long does my wife have to deal with it. Is it safe for her to be putting so much pressure when she is pregnant? I feel she should not be throwing up so much. How many times are you suppose top throw up and when does it start and end? What are the various things a woman feels when she is pregnant? My wife is vomiting at least 5 times; don’t you think that is too much? What can I give her to make her feel better?