super anxious

So me and my boyfriend had sex this month on the 4th day of my period, 4th and 5th day after my ovulation day.During mu fertile week and ovulation day, i was on a vacation and we didn’t have sex.Every time we have sex we use condom+he pulls out before he cum+we check the condom with water after that(btw he is 100% that there were no holes).I am really anxious because my period is late with 4 days and i don’t have any symptoms(some white discharge and pimples).I went through a lot of stress this month because i had back problems and i self-diagnosed myself with dangerous illness...and i was soo stressed that i was completely shaking.I also took paracetamol 3 times.Do you think that i should worry about pregnancy?Or maybe it is late because of the stress?I also took a test last night even though i was three days late on the package was said that it is with 99% accuracy from the first day of the delay.It was negative,no faint lines.