Any Lille Baby Carrier Complete All Seasons users?

Hello. Ftm is here. I purchased Lille baby carrier recently for my 2 months old baby. But I am not sure how to position his legs. The bottom part of the carrier seems very large and his legs must open very widely. I have never used a carrier before and I am scared to hurt his little legs or hips. Anyone using the same carrier? How do you position your baby in it? Should I wait until he is bigger?