What is this?

Im 15 and having this discharge (on my finger in the picture). My cycles range from 24-35 days and now its currently day 38. I has sex about a week ago and we used a condom, he pulled out, and he also didnt even cum. It feels light my period starts and i have light cramps but its just discharge. I stuck finger in my vagina and it feels very tight. Im praying that im not pregnant because that is the last thing i need. My boyfriend doesn't think in pregnant, maybe im just scared. Does it sound like my period is about to come? But can someone please explain to me what is going on, im freaking out and stressed outa my mind!