Help !!!

So I had sex last night ... I went to the bathroom this morning and had very very light pinkish spotting. But it seem as if it settled on my skin because when I wiped that one time that’s the only time I seen it . No matter how much I kept wiping I didnt see that color anymore . Now could it have came from sex or the fact that I’m 9 DpO... just wondering if anyone has gone through that ... it was veryyy light .. but I figured if it had came from sex it would have been more and darker ...