Spotting help!

Summer

I have pcos haven't had my period in 4 months which is normal. My periods are usually very very heavy. About 10 days ago I masterbated (didn't insert anything, just rubbed my clit) and then I got brown discharge. This normally happens the day before my period starts. The next day there was no blood or nothing. The day after that there was no blood until 7pm after I got done masterbating that day it was heavier so I thought my period would now be starting. I did get a blood clot too which is normal on my period. The next day it went from heavy flow to light/spotting. It's been spotting now for 7 days. I haven't masterbated since. I know you'll probably tell me to go to,the doctor but 1) last time I went it costed me 400 dollars for a regular checkup with insurance and 2) they will probably put me on BC and I don't think my insurance covers that and I don't have 500 dollars for BC. I guess my question for you guys is has this happened to you and if so did it resolve itself or what happened.