This pattern is designed as photo prop.
This romper is knitted tops down, mainly in rounds on double pointed needles as one piece as much as possible (to avoid sewing pieces together).
Size: newborn (up to 1 month old baby)

Materials used:
Yarn: Aran weight, I have used Drops Air 150m/50gr
Needles: 8US/ 5.0mm – selection of DPNs & circular 32”
Button 10mm – 3 pcs

Gauge: 18sts x 24rows for 10 x 10cm

Skill level required: Intermediate
CO = long tail Cast On method
K = knit stitch
P = purl stitch
m1 = make one stitch (increase)
K2tog = knit two stitches together
ssk = slip, slip, knit two stitches together through back loop
P2tog = purl two stitches together
RS = right side of work
WS = wrong side of work
sts = stitches
BO = bind off; two types: simple and stretchy: https://youtu.be/rWS77BKk5NQ
MB = make Bobble = YO, (K1, YO, K1, YO, K1) into next stitch; turn work and sl1, P5; turn work and sl1, K5; turn work: P2tog x3; turn work: sk2psso - https://www.youtube.com/watch?v=mTpZsSlsNCg