When should I start shopping for baby stuff?

Paquita

Hi, I am 30 yrs and 14w2d ( 4 months), I found out through NIPT I am having a boy 💙I trying to see when I should start buying some baby stuff? I like to get a early start since I will be a single mother ( which I am completely fine with 😊) I bought a storage container to hold everything because I am moving in July.