Lots of spotting! Clots etc. help!!!

This all started around Halloween I started spotting and bleeding inbetween my period. I just starting working out and eating healthy so I thought it could be from that as well as I was just getting over a yeast infection. No fun! Well it continued for a Few weeks until November. My period came a whole week early and I passed the biggest clot I've ever seen. Maybe the size of a baseball! Had to leave work and everything. The spotting continued and then finally stopped in the middle of December! I was so relieved! Well earlier me and my SO had sex and I'm spotting and bleeding out lil chunks again. It's bright red and sometimes it's almost pink. Has anyone else experienced this? I will be going to the doctor in the next few weeks when I get paid. Just wanted to reach out on here first. Thanks!