Taking time off from work is not a solution to dysmenorrhea. It is recommended that you consult a professional Chinese medicine practitioner to fundamentally solve the problem of dysmenorrhea.
Let me talk about your husband. He is too traditional and conservative in his thinking. Dysmenorrhea is a health problem that many girls may encounter. There is no need to make up lies and deceive others, and it is not a shameful thing. Your dysmenorrhea is already annoying enough, but he still adds to the trouble. He really doesn't know how to be considerate of women.
Ask for sick leave. It is better to take sick leave and go to the hospital to see a professional doctor for treatment instead of holding on to your stomach at home and resisting. It fundamentally solves the problem of menstrual cramps, makes me feel comfortable, and saves me from causing trouble to my boss.
Furthermore, many jobs now have a lot of problems, and employees frequently ask for leave, which makes it a headache for leaders. Put yourself in someone else's shoes and understand your leader's difficulties.