Freaking out! No baby things!

So me and my husband do not have the money to buy baby things. Yes we can afford the month to month things but the initial set up is super expensive. So my parents have agreed to help us out by buying us things, but they want to start buying when im around 28-30 weeks. Im 19 weeks today and it just hit me that in only a few weeks theres a possibility my son could be here! I know its not common but ive heard a lot of stories from family members that had their baby early and its kinda freaking me out we dont really have anything but a few outfits. Even if we just started actually buying things id feel better but my parents want to wait and it feels like they want to wait until the end and its making me have anxiety. Im a huge planner and I know you can never truly be prepared for a baby but id at least like to have my basics before hes here!