Confirm both listed newborn minimums
Ergobaby lists the Omni Breeze from 7lb and 20in. Meeting one number does not replace the other, and babies below the stated limits need a different carrier plan rather than an improvised insert.
Use front-inward carry
A newborn starts facing the caregiver. Do not use front-outward, hip, or back carry simply because the carrier supports those positions later; each has separate developmental requirements.
Set the seat before tightening the straps
Use the waistband markings and official instructions to match the seat width to the baby's height. Center the baby, settle the bottom deeply, and check that the thighs are supported without forcing the legs wider than the instructed position.
Keep the face visible and airway unobstructed
The baby's face should remain visible to the caregiver, with the head supported according to the manual and the chin clear of the chest. Reposition immediately if the baby slumps, becomes difficult to observe, or the panel covers the face.
Fit each caregiver separately
Waistband height, shoulder straps, chest strap, and lumbar panel settings should be adjusted for the current wearer. A setting that feels secure on one adult may place the baby too low or shift pressure on another.
Use short practice carries first
Complete the first setup while calm and with another adult nearby. Check the carrier and baby frequently, stop if either person is uncomfortable, and use Ergobaby's manual or consultation support when the fit remains uncertain.