Window periods are the time between you having sex and an STI being able to show up on a test!
It’s super important to know these as many people go and get tests right after unprotected sex. It’s most likely if they did get something it won’t show!
This is not to be confused with the incubation period – this is how long for the infection to produce symptoms (but remember many STIs can be symptomless!)
HPV is not included as you can't do a blood/routine STI test for this, only a cervical/anal screening for cells!