What would you do?

Lo
I have an appointment next Monday and I'll be 15w4d and I won't be getting a scan to look for gender. It just sort of dawned on me since on my appointment printouts they will list it if I have one upcoming and they didn't for this next appointment. SO, I'm super anxious and was counting on finding out for some reason, and now I'm looking at another four weeks from Monday. My husband's cousin is going to throw us a surprise gender reveal party but I'm unsure if he and I can hand over the ultrasound to her without knowing first for ourselves. Would you do this Sneak Peek thing I've been seeing where you prick your finger and send it in? Is it worth it or should I just wait the four weeks? I'm sure you all for the most part can relate to my impatience 😩
Thanks in advance!