Shower for 2nd

So it's been 4 years since I've had a baby and I'm currently 9 weeks along. I've always heard that every baby needs a celebration. My mom keeps telling me that nobody has a baby shower after they have a first baby. I said I was going to have one since its been so long and I don't have anything left. And she told me that she wasn't going to host it because she didn't have a shower for all of her pregnancies. She said that nobody would come so I shouldn't have one. What does everyone think? Shower for second baby, ok or no?