[name_f]Felicity[/name_f] [name_u]June[/name_u] or [name_f]Eliza[/name_f] [name_f]Charlotte[/name_f] would go great with your sibset!
With middle name [name_f]Charlotte[/name_f], sisters [name_u]Ainsley[/name_u], [name_f]Emily[/name_f] and [name_f]Lucy[/name_f], and based on names you like…
[name_f]Felicia[/name_f]
[name_f]Opal[/name_f]
[name_f]Viola[/name_f]
[name_f]Lena[/name_f]
[name_f]Cecily[/name_f], [name_f]Cecilia[/name_f]
[name_f]Elizabeth[/name_f]
[name_f]Amabel[/name_f]
[name_f]Delia[/name_f]
[name_f]Rosamund[/name_f]/[name_f]Rosamond[/name_f], [name_f]Rosalind[/name_f], [name_f]Rosaline[/name_f]
[name_u]Vivian[/name_u]
[name_u]Florentine[/name_u]
[name_f]Guinevere[/name_f]
[name_f]Natalie[/name_f]
[name_f]Aurora[/name_f]
[name_f]Maeva[/name_f]
[name_f]Evangeline[/name_f]
[name_f]Matilda[/name_f]
Go [name_f]Felicity[/name_f] if you’ve loved it for years. Goes well with all your others which is a good thing. I have a cousin [name_f]Felicity[/name_f], who also does the shorter [name_f]Flick[/name_f].
I love [name_u]June[/name_u] with your sibset especially with the nickname [name_f]Junie[/name_f]. That would be perfect 
Im going to say that if you didnt name your daughter with a -y ending, it would be weird. I think [name_f]Felicity[/name_f] really complements your other girl names as well. I also think its special to let her know that even though she is your fourth girl, you aee ih so happy (felicitys meaning) to have her! I have a baby [name_f]Felicity[/name_f] and we love the name bunches 
[name_f]Felicity[/name_f] [name_u]June[/name_u] would be my pick, followed by [name_f]Juno[/name_f]/[name_u]Juneau[/name_u] Kailani or [name_f]Eliza[/name_f] Kailani. I say, if you love it, use it!
I love Kailani! I think that it would go well with your other names! If you love it then you should go with it!
Let’s see… (Sorry for any repeats, I haven’t read all the replies) Names that sound nice with [name_f]Emily[/name_f], [name_u]Ainsley[/name_u], and [name_f]Lucy[/name_f] and middle name [name_f]Charlotte[/name_f]…
[name_f]Flora[/name_f] [name_f]Charlotte[/name_f]
[name_f]Julia[/name_f] [name_f]Charlotte[/name_f]
[name_u]Vivian[/name_u] [name_f]Charlotte[/name_f]
[name_f]Imogen[/name_f] [name_f]Charlotte[/name_f]
[name_f]Mirabel[/name_f] [name_f]Charlotte[/name_f]
[name_f]Stella[/name_f] [name_f]Charlotte[/name_f]
[name_f]Magnolia[/name_f] [name_f]Charlotte[/name_f]
[name_f]Isla[/name_f] [name_f]Charlotte[/name_f]
[name_f]Fiona[/name_f] [name_f]Charlotte[/name_f]
[name_f]Mabel[/name_f] [name_f]Charlotte[/name_f]
I don’t think it would be a problem at all to have all the girls end with a y. [name_f]My[/name_f] 4 boys all end with an n and it hasn’t been difficult at all. Some people notice it, but it brings a certain unity. In fact, I think some people were surprised/disappointed that our baby girl wasn’t also given a name that ends in -n. [name_f]Felicity[/name_f] [name_f]Charlotte[/name_f] matches beautifully with the other girls and is a lovely name.
Use [name_f]Felicity[/name_f]. Why break the trend? Plus it’s very pretty.
At the end of the day your children will grow up. They won’t be listing their sibset on their resume or their transcript, so don’t worry about the rhyming thing.
I just said a prayer for your baby girl!
I really do like [name_f]Felicity[/name_f]. Plus the meaning is very sweet. [name_f]Felicity[/name_f] [name_u]June[/name_u] goes perfectly together, too!
With your girls names and your list, I also thought of [name_f]Liza[/name_f] instead of [name_f]Eliza[/name_f]. It sort of fits with [name_f]Lucy[/name_f] enough that maybe its not too left out since it doesn’t have the “lee” sound at the end.
I love [name_f]Eliza[/name_f] [name_f]Charlotte[/name_f], but agree with what previous posters have said about “if you love [name_f]Felicity[/name_f], use it. It will unite your daughters”. What’s your son’s name?
[name_f]Emily[/name_f], [name_u]Ainsley[/name_u], [name_f]Lucy[/name_f] and…
[name_f]Katie[/name_f]
[name_f]Annie[/name_f]
[name_f]Tory[/name_f]
[name_f]Nathalie[/name_f]
[name_f]Maddie[/name_f]
I love [name_f]Charlotte[/name_f] btw! [name_m]How[/name_m] about [name_f]Charlotte[/name_f] as her first name?
[name_f]Emily[/name_f], [name_u]Ainsley[/name_u], [name_f]Lucy[/name_f] and
[name_f]Harriet[/name_f]
[name_f]Heidi[/name_f]
[name_f]Georgia[/name_f]
[name_f]Freya[/name_f]
[name_f]Thea[/name_f]
[name_f]Cleo[/name_f]
PS: [name_u]Love[/name_u] [name_f]Felicity[/name_f]!
[name_f]Olivia[/name_f] or [name_f]Sophia[/name_f] have my vote!
I think [name_f]Eliza[/name_f] flows the best with the siblings. Kailani is pretty but doesn’t work with the rest of the sisters.
[name_m]How[/name_m] about [name_u]June[/name_u] [name_f]Felicity[/name_f]? I love this with your girls’ names.
[name_f]Felicity[/name_f] [name_u]June[/name_u] is also very pretty if you decide you’re not too worried about the same ending as her sisters’ first names. I think it would be just fine to choose a first name that ends with an “ee” sound, too.
Best of luck! We are contemplating #5 and I am pretty sure he/she would end up being boy #4 for us. A blessing in any case. 
I’ll suggest [name_u]Juniper[/name_u] nn [name_u]June[/name_u] and [name_f]Isobel[/name_f]/[name_f]Isabella[/name_f] I love your daughters names and you have so many wonderful suggestions 
Congratulations!! What beautiful names your daughters have! I think it would be lovely for your 4th girl to have a name that ends with the same “y” sound as all her sisters. What do you think of…?
[name_f]Kinsley[/name_f] [name_f]Charlotte[/name_f]
[name_f]Tenley[/name_f] [name_f]Charlotte[/name_f]
[name_u]Hadley[/name_u] [name_f]Charlotte[/name_f]
[name_u]Paisley[/name_u] [name_f]Charlotte[/name_f]
You guys! I am DELIGHTED as I look at my list of possibilities, which felt so pathetically small yesterday. Great, great, great ideas and lots of names I’ve never considered. Also delighted to see some listed that I thought I was crazy for liking (shout out for [name_f]Freya[/name_f]). [name_f]My[/name_f] son’s name is [name_m]Caleb[/name_m], for those who asked, and he thinks we should name our daughter Jelly [name_m]Bean[/name_m] since she’s due close to [name_f]Easter[/name_f]. Kids are awesome. Thank you for ALL your help and suggestions!!!
(I hope I can put up a poll with our final choices before she comes. We’ve managed to keep her in for 12 more hours, let’s hope she stays put!!!)
[name_f]Felicity[/name_f] Kailani! That is a gorgeous name with a GREAT meaning! I think it sounds wonderful with your other daughter’s names as well. Good luck!