nordic nations with lots of subsidies also have kow birthrates

if you give women choice, (education, careers etc) they mostly choose 0, 1 or 2 kids at most, all of those choices are below replacement. For every woman choosing 0, you need another choosing 5 just to stand still.

If you take away choice, keep women mostly at home, use religious indoctrination (quiver full) and insist upon a patriarchal society sans birth control you'll raise the birthrate. It's why many conservatives are starting to talk about banning birth control, where once they frowned on teen moms, they're now advocating for it.

True, but unless you or your partner are against the very idea, most prospective relationships start with dating, then are moving toward marriage, children, or both.