4-6 months

Movement starts before rolling appears

Small shifts in posture and effort often happen before big milestones

The Millie's Team By The Millie's Team · Parenting Notes

Around week nineteen, you may notice your baby shifting their weight, kicking with more strength, or arching to one side. These small movements often appear well before rolling itself.

What is happening

Your baby's muscles and coordination are getting ready for bigger movements. Each little push, twist and stretch is a small piece of practice. What looks like wriggling is actually the body learning how to organise itself.

Is this normal

Yes. Some babies practise quietly for weeks before rolling, others seem to skip straight to the bigger movement. Both paths are normal. Early effort that does not yet lead anywhere is still real progress.

What you may notice

What helps right now

What to expect next

Over the coming weeks, these small movements often build into the first full roll. It can happen during play, during a nappy change, or quietly in the cot. Once it appears, it usually takes a little while to become reliable in both directions.