Stress about staying in job

Hey guys can anyone help. I work as a Police Officer and the job as been stressing me out. I am finding it is not for me but because I fit a certain quota they are trying to get me to stay.

However I made my mind up to leave and the painful weeks before I hand in my notice is stressing me out to the max. My husband and I are trying for a baby and after our loss in Novemeber it is still with me and not been able to process things being in the job but my management arent getting the stress and anxiety I am having and keep saying it will get better in time. The job doesn't suit me as a person I have found and the more and more I try explain myself to different people the more I feel stressed. I want to be a mum but I'm too stressed to stressed to even have sex. Help anyone :(