These are really tiny, so if you want a variety of sizes since Preemies vary in size depending on how early they were born, you can adjust your hook size to a larger hook.
X Stitch Preemie Hat
Hook Size: G Gauge: 4 SC & 4 Rows = 1”
Materials: 1-2 oz Caron Simply Soft Yarn
Round 1: 6 SC in 2nd ch from hook, join w/ sl st in 1st SC
Round 2: Ch 3, turn, 2 DC in 1st SC, 3 DC in each of the next 5 SC, join w/ sl st in top of
Beginning ch 3 (18 stitches)
Round 3: Ch 1, turn, 2 SC in each st around, (36 stitches) join with sl st
Round 4: Ch 3 turn *sk next SC, DC in next 2 SC, DC in back in stitch just skipped*
Repeat *to* around, (12 x stitches), Sl st in top of ch3
Round 5: Ch 1, turn, Sc in each st around (36 stitches)
Round 6-11: Repeat Round 4 & 5
Round 12: Ch 3, turn, DC in each SC around, join with sl st
Round 13: Ch 2, turn, DC around FP of next stitch, *DC around BP of next stitch, DC around FP of next stitch*
Repeat from * around join with sl st in top of ch 2, Fasten off and weave in ends.