Stress and family life has caused us to neglect sex life

I'm a woman in my early 50s and I like to think I’m still pretty youthful in terms of how I look and the way I live my life, and I'd say the same about my husband.

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Other than minor relationship ups and downs, we've had a very good marriage, stayed best mates and raised two lovely children.

My problem is, we haven't had sex in a year, and even thinking about the possibility of it now makes me feel a bit cringey and embarrassed.

The weird thing is, the physical side of things was never an issue for us in the past and we used to have a good sex life. I love him and still find him extremely attractive, but we've just got out of the habit of having sex.