Contact Form 7 -Checkbox that enable other checkbox if checked

I need to insert a checkbox that, once activated, makes some otherwise hidden fields appear in the Contact Form 7 form.

In my case:

Sex (Required) [checkbox* checkbox-323 label_first use_label_element "Man" "Woman"]

If woman is checked i need to show:

Date of last menstrual cycle gg-mm-aaaa
[text text-517]

[checkbox checkbox-631 label_first use_label_element "Absence of menstruation"]

Have you some ideas? Thank you