Someone help me take a chill pill...

A little background:

I stress way too much. I only have protected sex if any sex at all and I also hit the gym a lot. On top of that, I have endometriosis which is never fun... Also, I found out a lot of terrible news that hit me hard and caused me to stress out a lot.

The Main point of me posting:

Eight days before the app says that my period is suppose to take place I am at the gym using the bathroom and I am spotting. This spotting is nothing heavy but it’s in my discharge and it’s really light as well as pink. I start freaking out and thinking all sorts of terrible things. It’s seems to be what I do best sometimes... Anyway, I took a pregnancy test it came up negative. I am two days now away from my period yesterday I had safe sex but apparently it was rough on my body that I started bleeding.

Somethings to note:

I have spotted before but back when I was nineteen and I am now twenty-one. I wasn’t pregnant at all at that time and my period came as normal... Though I am young and dumb so I am looking for someone who might of been through a similar situation or tell me to call my butt down... Or to tell me to seek medical attention... idk