Thanks all that's reassuring, my concern is jizz plus the fact that Google suggests jhs can also be an unfortunate teenage chat speak acronym (although I've yet to find anyone aware of this in real life)
Hopefully if baby is a girl she wont hate us for it in later life!
If it helps, my old initials were innocent in themselves, but if read in a certain way sounded like a short version of female genitalia. I only realised this as an adult when well in my 20's and some lovely work colleagues pointed it out and found it amusing. I made it all the way through school without a bother.