Smh , I’m freaking out . I had sex like a week before my ovulation day . it was about 9 days before my ovulation and from what I understand semen survives for 5 days . ... can it last longer ? (That’s question one)

Now my period is going on two says late , and my face has broken out horribly (look like heat bumps all over my face ) for 3 days now . I have this really weird feeling I’m pregnant. Because on top of it all , i usually always know my period is coming etc even when it’s late I know it’s coming . But this time , I completely forgot I even had a period that was supposed to be here rn ! I took a test and it was negative , how long should I actually wait to take a test ?