Would you say anything?

I work with a women who I over heard saying that she stopped her pill in hopes of being pregnant. No big deal, right? Well later she went on to say that her BF doesn't want a baby and she stopped the pill without him knowing. She went into detail but long story short... He doesn't cum inside so her plan is to "gather" the sperm and insert it inside her.... I was shocked!!
Now I just work with this women, I am not friends nor really know her. I found her on Facebook and I found her BF. She recently got fired so I cannot confront her. I know I should of right away but was shocked. Should I message her BF? He has no clue who I am and I doubt she even knows me by my name? Or leave it alone?
It just disgust me that a women does this