Forced, no. Allowed to criticise, yes.
In his encyclical letter, over 50 years ago, Pope Paul VI reaffirmed the church's condemnation of contraception.
This view remains the Catholic church's stance today - although the vast majority of catholics ignore it, and are avid users of the pill, condoms etc.
Humanae Vitae is the letter's name, and worth reading - if only to see how this religion refuses to either alter its dated thinking on so many matters, or move with the times.
More progress has been made under the current Pope, than any other - most notably the new willingness to out their paedophile priests instead of denying their existence.