I Had Not Had Full Sex (In Which He Finishes

I had not had full sex (In which he finishes inside me) but my fiancé and I got intimate and led to him going inside me for just a quick moment. He did not come until way later. It is now 10 days later (around when my period should be here) and I only have some weird looking discharge when I wipe. It is not enough to even wear a pad or tampon. It is only there when I wipe. It has done this for three days now. Need advice. I worry about pregnancy but it would have to be off of precum. I'm just scared please help