During their conversation Teresa Tommeo pointed out that this year was the 40th Anniversary of Humanae Vitae. (25th July 1968). Sadly all that Pope Paul VI said would happen has happened-and maybe even worse than he envisioned.
Although, when I was a teen I was given a lot of conflicting information-but mainly told that HV could be safely ignored, we now have the stunning Theology of the Body from Pope John Paul the Great. I have found a whole load of podcasts about this-but I'll check them out before posting links.
Meanwhile on Thinking Love, No Twaddle there is some basic notes on answering the questions of a 4yr old-nearly 5yr old; not in quite the way I think our sinister ministers have in mind.