Please if anyone can take a minute to help me out!!!

My period finished about 12 days ago and ovulation is in 5 days and Friday night I had very light pink spotting and thought it was implementation bleeding but then today it got very heavy with sting cramps and it was enough to fill a pad within 15 minutes and tonight I noticed multiple blood clots coming out. We’ve been ttc for 5 months and nothing like this has happened before. Has this happened to anyone before?? I can’t go to the doctors until Monday so wondering if anyone has any insight.

This is what it started looking like today.