Need advise please

So today I'm 8w and 1d preggers. Well when I went in for my first appointment I really thought I was further along due to the dates. You know how that goes. Lol! Before getting my ultasound they asked if I wanted to get the panorama test done and I could also know the gender. Well of course I said yes not because of the gender but more so the genetics. Reason being that I've had two previos miscarriages and with both the genetics were bad. So anyway fast forward to today. I get a call from a nurse at my obgyn's office and she lets me know that everything was normal. Thank god!!! And she also asked if I wanted to know the gender which I replied with a no. So she just asked if I wanted her to lace it in an envelope for me and I said ok. Well we've already decided that even if we have another miscarriage with our little peanut. This will be our last pregnancy because I'm getting my tubes tied or whatever it is that they do. Now my hubby said well we're gonna cookout this weekend to celebrate our children's bday. Why don't we just make it a surprise gender reveal as well. So I'm kinda contemplating if to go with it. I mean I won't get this chance ever again. So what do you ladies think? Any advice is good advice in my book. TIA p.s sorry for the long post.