11 month sex drought ended but ...

My husband and I have gone 11 months without sex. There has been a lot of high stress in our marriage on many levels and we have had a very sick child who has been hospitalized four times and recently had surgery. We wanted to stop the drought and reconnect and I was excited to start having sex again. Well everything started out great but he was unable to get it up 😞 I was feeling defeated and upset thinking really I can’t have this either? Life has been hard so I was upset and disappointed. As a women you think of so many reasons your man can’t get it up and that’s depressing. So what gives? Any advice or support would be greatly appreciated.