Teen going on date, how to prevent them from doing anything tonight

MOTHERS OF TEENAGERS ONLY PLEASE.

MOTHERS OF TEENAGERS ONLY PLEASE!!!!

I have a daughter who is 17 (Turned 17 in May) and this boy she is dating is her first ever boyfriend... Unless I count some kid from the 7th grade 😹. My daughter is going on a date with him later at 9. I have to watch my newborn baby so I can not chaperone them, but I am trying to find ways to keep them from doing you-know-what. I could send someone else to chaperone, watch her on life360, etc??

For the record, I am looking to take extra measures because my daughter ordered this underwear set without me knowing. I have access to her bank account and I check it once a week to see what she has bought. I did take it from her and tell her she can have it once she has moved out, but I'm still worried that she is looking to sneak off somewhere with him tonight. Any help please and now?

Again mothers of teens only, or at least kids older than 11.

For the record my daughter is educated on safe sex, but obviously I'm not going to leave an open door for her to do it while she's young. I am aware safety is important!