Buying too much?

My husband thinks I am buying too many things for the baby. We have a planned pregnancy and I'm so over the moon to be pregnant with our child. So if I go out and see things that we need and want for the baby, I get them (especially if they're on sale 😉) We both agreed that we will not buy anymore clothes for the baby until we know the gender due to the fact that we already have a lot of gender neutral clothes and we want to be able to buy colorful clothes too. 
His issue is that he wants me to wait to buy the bigger things until we have a baby shower/receive gifts from friends and family. But we planned this child and we have the money. I'm a huge planner and I would rather be prepared and have everything as early as possible than wait to see if people buy things or not. Am I wrong? Should I hit the brakes and stop buying so much? I'm just so damn excited. 
So far we have a lot of clothes, some blankets, a bouncer and a few boxes of diapers along with wipes. But I want to get a lot more by ourselves.