In addition to your menstrual cycle, these things can cause hormonal headaches:

1. Birth control.

Some hormonal forms of birth control, including the pill, make headaches worse for some people and lessen them for others. Three weeks out of every month, they keep the hormones in your body steady. When you take placebo pills or no pills at all during the week of your period, your estrogen levels plummet and your head can pound.

2. Perimenopause.

In the years before menopause, estrogen levels go on a roller-coaster ride. You may have both tension headaches, which result from stress, and migraines during this time. Once you’re in menopause (you stop having periods for good), you’ll probably have fewer migraines. But tension headaches often get worse.

3. Hormone replacement therapy.

The type of medicine some people take during menopause to control their hormones, or as part of gender-affirming care, can also set off headaches.

4. Oophorectomy.

This is surgery to remove your ovaries, sometimes done along with a hysterectomy or with gender-affirming therapy. Removing the ovaries causes a drop in estrogen levels right away, which may lead to headaches.

5. Pregnancy.

During the first trimester, estrogen levels rise quickly, then level out. Because of this, you may notice your migraines get better or go away after your third month of pregnancy.

6. After childbirth.

Once you give birth, your estrogen levels drop. This can trigger headaches. So can the sleep disruptions and stress that come with caring for a newborn.

Sources - https://www.webmd.com/migraines-headaches/hormones-headaches

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https://www.webmd.com/migraines-headaches/hormones-headaches