Oh fun question I have a Maeve! We are not Irish at all it was the name of our midwife. :) Not a name we'd considered before but we absolutely love it.
That said, I had had Niamh on my list, but dismissed it because of the lack of Irish connection. It is a gorgeous name. BUT I am so glad I did not use it! We lived in Canada for two years (DH is Canadian) and anyone I told about the name looked at me like I was insane and asked if I made it up! It really has not hit North America yet (or at least Canada, maybe the US has more Irish-Americans though.) It will, I think, and you can be a trailblazer, but it's the kid who has to explain all of the time not you.
You could spell it Neve, but I think that ruins it a bit. Also, Neve Campbell, the only Neve most people will know of, is actually "Nev" -- her name is Scandinavian. So it actually might not help with pronounciation in the US.
TBH more people struggled there with Maeve than I thought -- she got Mauve and all sorts. It really isn't hard though and is pretty phonetic and most people just needed telling once. Never had an ounce of trouble in the UK.
Names on my list for this baby are Isla (gorgeous, but very trendy -- worried it may date badly), Nina (family name, but also love the Simone connection), Cerys, Constance, Isobel (family name, DH hates), Freya (DH hates), Anna (DH thinks is boring) and Beatrice (DH also hates.) I'm secretly hoping I can steal the midwife's name again.
Congrats! I'm biased but I would go with Maeve!