Pull out method

Anyone gotten pregnant using the pull out method? My SO and I aren't trying to prevent or make a pregnancy happen. He pulls out when he's done, wipes off and then he we go at it again (TMI sorry) I was just wondering if any of you guys have gotten pregnant using this and how soon did you find out? I'm regular (28 day cycle) although last month I had the tiniest bit of pink spotting for 2 days before until I got my period which lasted 5 days. And now I'm not due till the 13 of this month.