Not pregnant right?

Didn’t get my period in August cause my body may have been stressed (traveled for 3 weeks for work). I was paranoid so I kept testing and they were negative.

On 9/9, my bf and I had protected sex. Not sure if the condom unrolled so I took a plan b just in case. Started to spot for 4 days after. Then I got my period 5 days after plan b and my period is extremely heavy with blood clots. This counts as my period, right? (Especially after not having period in August)

Please tell me there’s no chance of pregnancy, since I got my period after plan b and used a condom anyway 😫