I don’t know which is weirder, naming a baby after the month they were born in, or naming a baby after a month they were not born in. When you really break it down, both options feel a little weird. The first seems unremarkable and unimaginative, the second is just perplexing. I think month names are one of those things that you can think to death, but in practice, it’s never that weird, and definitely not tacky.
You know what is tacky? Naming a child after the place they were conceived.