Natural Abortifacients?!? Would have been great to know!!

I was introduced to a new word today... Abortifacients, natural ones!  Since my DH and I are TTC, this word obviously scared the SH*T out of me. Upon research, apparently everyday foods like papaya, pomegranate, and Pineapple (is it a P thing??) can cause natural abortions early on in your pregnancy. Is this for real?! Can anyone tell me if they have conceived with a successful pregnancy while eating these items?? Anything else I should be avoiding!?? Scary!!