Early Miscarriage?

About 3 weeks pregnant...Had sex this morning then immediately went to the restroom to pee and "clean up" I noticed a little white/clear "mucus" spot in the toilet that had 2 little bury red dots in it. I took a cue tip and swirled it around and the dots (blood) spread apart. Would this be an early miscarriage or just a mixture of vaginal discharge and semen?  Haven't had any bleeding or spotting since then. Praying it was nothing serious.