Need suggestions please!

🌻sunrisesunset • Mommy to two beautiful daughters 💓💓| PCOS | 29 | TTC #3
So I am currently 36+2, at my last appointment at 35+1 I was told the baby was 4 pounds 12 oz approx but her tummys been small the past 10 weeks because they think she will be thin due to my size. I am currently in the hospital for non severe preeclampsia and was told I will be induced this week at 37 weeks. Should I buy preemie diapers and maybe a few preemie outfits since she's coming a little early and already small in size?! I've got plenty of newborn diapers as well as clothing but we also thought we wouldn't be delivering 3 weeks early!