Waiting to find out sex

We already have three pwrfwcy healthy babies two girls one boy! So this time all I want is to have it a surprise I want it more than anything but am terrified I will give in when they ask if I want to know but I will hopefully say as soon as I walk I'm we don't want to know at all . I'm only 5 weeks but ever since I decided to conceive again this is something I have wanted badly :) so here's to hoping I make it another 32 weeks :)