Am i stressing to much?

please don’t judge me but I took a plan b because i am 17 years old and most definitely not ready for a child. the condom broke during sex and i took the pill immediately after. 5 days later i started having heavy bleeding with clots for 3 days. it has been 3 weeks and 3 days since i had intercourse and my period was scheduled for the 9th but i still haven’t gotten it. i have taken at least seven test that have all came out negative and one early response on the 8th that was negative as well. do you guys think i am fine? and maybe giving my self the symptoms by stressing so much?