I’ve been trying for 4 years never had a positive pregnancy test

My cycle was on May 30- June 3

My fertile window started June 8th

I started TTC on June 8th

I just seen a clot on today June 12

Was I pregnant and didn’t know it and is this a miscarriage or something else. I haven’t seen anymore clots just a lil bit of light pink bleeding my next cycle is due until June 26

My cycles are never late I have a cycle every 28-30 days

If you ever had a miscarriage does my clot look similar to yours