Yes, today is the 44th anniversary of Humanae Vitae, the reaffirmation of the constant Church teaching on contraception by Pope Paul VI in 1968 (actually, *ALL* Protestants believed it until 1930, too).
The videos below are the best that I found on Youtube that talk about Humanae Vitae and contraception from best to less-than-best, but still good and on topic:
Humanae Vitae: Catholic Teaching - Part One and Two
The Catholic Church and Contraception Part 1 and 2
Contraception & the New Dark Age :
Where we are and how we got here Part 1 of a 4 part series.
Contraception & Salvation Part 2 of a 4 part series.
Contraception and Sanctification Part 3 of a 4 part series.
Contraception and the Sexual Ethic Part 4 of a 4 part series.
Dr Janet Smith - Contraception: Why Not - Abortion
Humanae Vitae: 40 Years Later - Part 1 and 2
Debunking Birth Control Myths - Episode 37 Excerpt - Life Report