Scared of the flu

Okay I’m 14 weeks pregnant & yesterday morning my boyfriend was complaining of a headache, and he was getting hot and cold ..... the headache went away he took something for a cold .... threw up the chicken noodle soup later that day .... today he was feeling better ate a big dinner and has a big appetite .... now he’s sleeping and is sweating real bad under two covers shivering ..... I’m so scared to get the flu because it’s going to be worse if I get it .... so I’m hoping it’s not the flu .... it’s impossible to stay away from him cause we sleep in the same bed ... I’m honestly scared ...