Sick all the time only Beef

This is my 4th pregnancy the other 3 ended in 2 miscarriages and one still birth. Out of all my pregnancys this one has been really different. When my husband was talking to his father he told his father how sick I've been and that the only food I've been able to keep down was beef and water! His father says that that is exactly how his mother was when she was expecting him. The only difference between me and his mother is that I can keep water down and she couldn't keep any liquids down. Is this Normal?