Im so 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 6 days.I have white discharge,pimples and sometimes cramps for a few sec. I went through a lot of stress this month.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 two days ago 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.I am thinking of getting one more,just to be sure.