I probably wouldn't notice it tbh, a kid at school is bound to at some point but I don't think your baby wound be alone in having "well known" initials.
The Americans, for whatever reason, do their initials first name - last name - middle name. My cousin's baby's initials should be JAM which again could cause a 9yo a giggle in the playground for a day but since they live in the USA it's JMA x