Sex for the Puritans Encouraged?

Although the Puritans lived in a time of "purity", as their name suggests, they didn't condone marital sex for the fact that they believed that it was suggested by God for this practice (in the Bible), also being something humans couldn't resist, (so they married their children early, not wanting them unmarried when they practiced this), and that a marriage was failing if they went without it. Why do you think there were so many kids back then? (No, it wasn't that the stork had an overload)

(Besides the need for more workers on the farm, a bunch of kids would be a daily reminder of their "sinful acts", if it was looked down upon, so they got started right after being married,wanting to have the perfect marriage, if you know what I mean).