Mommas and mommas to be How ready were you? I have 16 1/2 weeks left and we have nothing, my friend…

Mommas and mommas to be How ready were you? I have 16 1/2 weeks left and we have nothing, my friend wants to do a reveal party but wants to wait until my next ultrasound (I don’t know when that is) when I went for my 20 week she had a 80% guess of what baby’s sex is going to be. Should I worry I won’t be ready in time?!