Hello, my entire family have been sick vomiting and some of have had diarrhea. entire family = 33 y/o female (me), 38 y/o male, 3 y/o boy, 1.5 y/o boy. We have not all eaten the same food so we have ruled out food poisoning. None of us have had fever. Symptoms began for 1/5 y/o on 5/11/17 over night and he has not had any vomiting since then. On 5/13/17 the remaining three of us began vomiting, just me (33 y/o female) and son (3 y/o) had diarrhea briefly. I am still nauseated but no vomit or diarrhea since 5/13 pm. When can I expect the nausea to subside? No way I can be pregnant.