I personally avoid putting my baby into carrier so early. My baby is currently 6 months old and have not sit baby carrier yet but will be trying soon! However, if you really need to, you may Google for instructions and videos accordingly to the brand and type of baby carrier you are using. Just take note the hip and legs are in the right position after putting. Also, ensure the baby carrier is not blocking your baby’s nose when facing your chest or front.
Hello! If you search on YouTube or tiktok you'll likely find tutorials to follow!! Though my personal opinion is that all the guidelines for ages are usually the bare minimum so I try to wait a little longer. Didn't put my baby in carrier until about 2 months, and now he is 7 months I haven't even turn him to front facing yet. Affects hip development!!