So my sister is pregnant with triplets (exciting and scary!) I am 17 years old and probably won’t have kids for a while. However, I love the name [name_f]Ottilie[/name_f] and its the name I’ve always wanted. [name_f]My[/name_f] sister wants to name one of the triplets (if it’s a girl) [name_f]Lily[/name_f], which is the nickname I planned on using for [name_f]Ottilie[/name_f]. [name_f]My[/name_f] mom claims my names will probably change and its not a big deal, but I have been set to have it. I don’t care if my future niece (if she has one) and my future daughter (if I have one) have the same middle name, but first names are a bit weird. If my sister hypothetically has a girl and names her [name_f]Lily[/name_f], would it still be usable? I do like the nickname [name_f]Ottie[/name_f], but I only planned on using [name_f]Lily[/name_f]. I know its not the biggest deal, but I just wanted to share this
How exciting for your sister!
Maybe you could talk over your name concerns with her, see if she cares if her daughter and yours might someday share a name.
It’s not a sure thing that your favorite name will change. And you lose nothing by having the conversation.
I think that if your sister names a baby girl [name_f]Lily[/name_f], and then later you name yours [name_f]Ottilie[/name_f] and call her [name_f]Lily[/name_f], then yes, that would be kind of weird. I wouldn’t do it.
If you’re really set on [name_f]Ottilie[/name_f] “Lily”, and have been for a long time, and you’re close enough to your sister that you could go to her and talk about this, then you should.
[name_m]Super[/name_m] exciting for your sister & family 
I think if [name_f]Lily[/name_f] is used by your sister then you going with [name_f]Ottilie[/name_f] nickname [name_f]Lily[/name_f] would be too much for one sibling set. However if you went with [name_f]Ottilie[/name_f] with a different nickname maybe [name_f]Tillie[/name_f] or Otti then that would work just fine within the same sibling set.
Hello, many congratulations to the entire family, especially to your sister! I hope everything goes well. I wish that all the babies and your sister are healthy and stay safe.
[name_f]Lily[/name_f] is a beautiful name! I understand why you both love it.
If I were in your situation, I probably wouldn’t say anything to your sister, especially in such an early stage. She doesn’t know the babies’ genders, so the naming process has barely started, I assume. The similarity of your tastes is not a real problem yet, and I would not bring it up. If you were both pregnant at the same time, maybe you could discuss names together, but that’s not even the case. In my opinion, going through a high-risk pregnancy is already stressful enough. Your sister is going through a delicate phase, with many new experiences, uncertainties, and both physical and emotional changes. During moments of sensitivity and hormonal fluctuations, sometimes small comments can lead to unnecessary conflicts or sleepless nights. I’m sure that your intention is not to alarm your sister and her partner, but it could happen. I don’t know the dynamic of your relationship, but in my opinion, I would avoid adding extra worries to my loved one. I wouldn’t want my sister to feel hesitant about choosing the names for her babies on the way. Eventually, you can share that you love the name [name_f]Ottilie[/name_f] for a girl, if you have a daughter someday and see how your sister reacts.
We don’t know what the future holds. I understand your side, but I also agree with your mom. With time, our tastes can change. Maybe you’ll never have a daughter. Perhaps, neither of you will have a daughter… [name_m]Even[/name_m] if you both become mothers of girls one day, a lot can change by the end of your sister’s pregnancy or by the time you become a mother. Maybe your sister will find another name she likes more in the meantime. Perhaps in a few years, you’ll have other favorite names. Maybe you can even help her find other names that she loves even more than [name_f]Lily[/name_f]!
I admit that my preferences haven’t changed much since my teenage years. I’ve been a member of Nameberry since I was around your age. However, every now and then, I add names to my list that I like just as much as some of the names I’ve loved since childhood. This will probably happen to you too! [name_m]Even[/name_m] if [name_f]Ottilie[/name_f] remains the perfect name in your mind in the coming years, you have to consider that your future partner might not even like the names [name_f]Ottilie[/name_f] or [name_f]Lily[/name_f].
Having two Lilys in the same family would be a bit tricky to manage, but not necessarily unusable, if you have a larger family. I wouldn’t do it, but I don’t think you should give up on [name_f]Ottilie[/name_f]! With [name_f]Ottilie[/name_f], you can also use nicknames like [name_m]Ollie[/name_m], [name_f]Tillie[/name_f], [name_m]Otter[/name_m], [name_f]Lottie[/name_f], [name_m]Til[/name_m], [name_f]Ottie[/name_f], Titi, [name_f]Totty[/name_f], [name_f]Tia[/name_f], [name_m]Tollie[/name_m], etc. Selecting a different nickname may be the simplest solution for you. In that scenario, you can both keep the names you love!
I think a few things you could consider are:
- your sister might not have a girl and she might change her mind about the name - and so might you! It’s a difficult situation right now but nothing seems ‘set in stone’?
- if she does use Lily, you could use Ottilie ‘Lily’ at home but just call her Ottilie when around your niece/family?
- if she does use Lily, Lily may well start to feel like your niece’s name and therefore not one you’d pick yourself? that might make other Ottilie nicknames appeal more (Lottie, Tillie, Ollie etc)
@Estrela I really like that response! [name_f]My[/name_f] sister and I are pretty close and I adore my niece and nephews. [name_f]My[/name_f] sister is VERY stubborn and if she is set on something, she will not change her mind. If she does have those three girls, she WILL use [name_f]Lily[/name_f] if she wants to and I can’t change her mind. The idea of changing the nickname I love is sad, but I will do it if I have to. [name_f]My[/name_f] sister is extremely stressed with having 3 kids and now 3 more on top of it, so you do have a point with wanting to not give my concerns especially since they arent concerned yet. No names are set in stone, but that was a name she had mentioned.
@Greyblue I like the idea of using [name_f]Lily[/name_f] at home and [name_f]Ottilie[/name_f] out with family. I’m not the biggest fan of other nicknames, but [name_f]Ottie[/name_f] is one that is growing. I also have a habit of picking nicknames and then using completely other nicknames. Nothing is set in stone, but I am an overthinker, so yeah… 
@tori101 thanks for your response! [name_f]Ottie[/name_f] is one nickname I do like, but I was am not a fan of too many other nicknames. [name_f]Lily[/name_f] is kind of the reason I fell in love with [name_f]Ottilie[/name_f] at first, but my taste in names have developed since then and [name_f]Ottie[/name_f] is one I do like
@lucy_halo1 I am pretty close to my sister, but she’s stubborn and she probably wouldn’t change her mind. She would probably just say she’s having a baby first and she is the one pregnant 
@TiffanyS thanks for the response! Honestly, I don’t think she would care if they shared a name since [name_f]Ottilie[/name_f] is the real full name and [name_f]Lily[/name_f] is her full name, but it wouldn’t be a big deal if it was a middle name, but first names can make it a little hard to know which one are they talking to, just like in a classroom with a bunch of Lilys. I think honestly she would think I named my child after hers, which isn’t the case, so that’s why it was mostly a concern to me. Its not like she stole the name from me because I liked it, but I just wanted some opinions about WWYD in this sort of situation honestly.