Ivy sounds the best in my opinion!
Another vote for [name_f]Ivy[/name_f]–I love it individually and with your surname! 
Ivy, timeless!
I love [name_f]Ivy[/name_f] O’[name_m]Donnell[/name_m]! [name_f]Autumn[/name_f] O’[name_m]Donnell[/name_m] is my second favorite. When I say, [name_f]Gemma[/name_f] O’[name_m]Donnell[/name_m], I get kind of tongue twisted.
Ivy or [name_f]Gemma[/name_f], can’t decide
[name_f]Ivy[/name_f]! [name_f]Gemma[/name_f] would also work.
Ivy O’[name_m]Donnell[/name_m] is precious – sounds like a spunky but gentle/sweet heroine from a romance novel set in [name_f]England[/name_f] or [name_f]Ireland[/name_f]. But all the names you’ve chosen are pretty!
[name_f]Ivy[/name_f] O’[name_m]Donnell[/name_m] sounds really nice!
Ivy followed by [name_f]Gemma[/name_f].
Ivy O’[name_m]Donnell[/name_m] sounds like such a perfectly balanced name - it’s fresh, flows well, doesn’t blend into each other too much… she could be the protagonist in a kids book series!
I think [name_f]Ivy[/name_f] sounds best, but [name_f]Gemma[/name_f] is a personal favorite that is a close second!
Gemma O’[name_m]Donnell[/name_m] sounds like a protagonist.
I’m not a fan of [name_f]Ivy[/name_f], unfortunately, although it does flow well.
All such fun names! I think [name_f]Ivy[/name_f] has the best flow, but [name_f]Gemma[/name_f] is right up there.
Congratulations! I think [name_f]Ivy[/name_f] or [name_f]Gemma[/name_f] flow the best.
ivy!
Ivy
[name_f]Ivy[/name_f] O’Donnell- it just sounds so musical! [name_f]Autumn[/name_f] sounds fine. Trying to say [name_f]Gemma[/name_f] O’Donnell is clunky, for me.
Autumn [name_f]Henrietta[/name_f] O’[name_m]Donnell[/name_m]