Darthmaum,
Iwb is probably the most secure, if your carrying your baby around the strong side carry might get in the way,,,but its the best I know of.......since your carrying the baby put the holster on em and youll have it at your hands.....just kidding.....since you wear jeans, depending on the type you can try an ankle holster, but that type of carry has severe limitations, although for driving its not bad at all..........the suggestion of a tie to hide an open button works as well so does taking the back of that button and putting a small amount of velcro on it and the same over the hole the button goes through and that way you could wear it without a tie or something to hide the open button....a smaller pistol would be in order for that though...the same concept would work with a belly band as well or perhaps a pager style holster with a small J frame...its not always the best pistol you own that is with you, its the one that fits your needs and dress.....stay safe,,,fubsy.