My husband can't have an erection!!!

gisenia

My husband and I have been married for 5 years, and never had a problem in our sex life.. the last 2 times we tried to have sex he can't get an erection. I'm concerned and don't know how to help this situation. sooo many things run through my mind. I get soo upset. What should I do or say to him???? How can I help him??