Pope Francis has had a busy week. He visited Mexico, condemned Mexico and the U.S. for their treatment of the poor, and even got into a tussle with Donald Trump.

Francis also made a surprising suggestion regarding a hotly - debated moral issue among Catholics, reports Fox News.

Pope Francis told reporters aboard his plane that using contraception might be morally acceptable in preventing the danger to a mother and child from the Zika virus. Francis condemned abortion at the same time, saying that 'avoiding a pregnancy' is not an 'absolute evil' like ending a pregnancy. How these comments will resonate with American Catholics, if at all, remains to be seen.

Pope Francis has returned home after his 6 - day visit to Mexico.