How does your sister/brother feel about you using it? If they don't mind then I don't think it's a problem. I personally woudn't use it just because it rhymes but thats just me GL!
My friend named her daughter Rohan (pronounced the same)... I love it! Super cute with a girly middle name like Alice. I wouldn't worry about the similarity to Bowen... funny coincidence, but I don't think it matters for cousins.
Re: I really like Rowan for a girl but...
This is what I think too, but DH thinks it's weird that the names rhyme.
bfp 1 - m/c 1.31.11 @ 10 weeks
bfp 2 - baby born via c-section on 5.4.12 @ 37 weeks
bfp 3 - blighted ovum/d&c on 4.13.13 @ 8 weeks
bfp 4 - 3rd IUI, very late BFN with super low P, c/p
bfp 5 - natural bfp while on lupron, baby born via RCS on 4.27.15 @ 39 weeks
bfp 6 - surprise! baby born via RCS on 11.13.16 @ 38 weeks
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