I really like [name]Rebecca[/name], [name]Elaine[/name], [name]Emily[/name] and [name]Helen[/name].
Instead of [name]Susan[/name] I absolutely adore fresh, pretty, vintage [name]Susannah[/name]/[name]Susanna[/name].
Instead of [name]Ann[/name], I think feminine and soft [name]Anna[/name] has a lot more energy and spark.
Instead of dated and overused [name]Jennifer[/name], how about the stunning and elegant [name]Genevieve[/name]?
[name]Karen[/name] is ok but seems dated and old fashioned on a little girl, what about the unusual but similar [name]Kerensa[/name]?
If I can make changes to your list to make the combos feel fresher and flow better whilst retaining a similar sound, how about:
[name]Susan[/name] [name]Ann[/name] - [name]Susanna[/name] [name]Helen[/name], [name]Susanna[/name] [name]Catherine[/name], [name]Susanna[/name] [name]Jane[/name], [name]Susanna[/name] [name]June[/name], [name]Susanna[/name] [name]Elaine[/name], [name]Susanna[/name] [name]Karen[/name].
[name]Ann[/name] [name]Catherine[/name] - [name]Anna[/name] [name]Catherine[/name], [name]Annabel[/name] [name]Catherine[/name], [name]Anneliese[/name] [name]Catherine[/name], [name]Anna[/name] [name]June[/name], [name]Anna[/name] [name]Elaine[/name], [name]Annabel[/name] [name]June[/name].
[name]Emily[/name] [name]Sue[/name] - [name]Emily[/name] [name]Susanna[/name], [name]Emily[/name] [name]Jane[/name], [name]Emily[/name] [name]June[/name], [name]Emily[/name] [name]Rebecca[/name], [name]Emily[/name] [name]Catherine[/name], [name]Emily[/name] [name]Helen[/name], [name]Emilia[/name] [name]June[/name], [name]Emilia[/name] [name]Catherine[/name], [name]Amelie[/name] [name]June[/name], [name]Amelie[/name] [name]Catherine[/name], [name]Amelie[/name] [name]Susanna[/name].
[name]Karen[/name] [name]Ann[/name]/[name]Rebecca[/name] - [name]Kerensa[/name] [name]June[/name], [name]Kerensa[/name] [name]Catherine[/name], [name]Kerensa[/name] [name]Elaine[/name], [name]Kerensa[/name] [name]Helen[/name], [name]Karina[/name] [name]June[/name], [name]Karina[/name] [name]Elaine[/name], [name]Karina[/name] [name]Helen[/name], [name]Kara[/name] [name]Rebecca[/name], [name]Carys[/name] [name]Rebecca[/name].
Janny [name]Rebecca[/name] - [name]Jane[/name] [name]Rebecca[/name], [name]June[/name] [name]Rebecca[/name], [name]Josie[/name] [name]Rebecca[/name].
[name]Helen[/name] [name]Elaine[/name] - (I like both these names but they seem too similar to use together to me!) [name]Helen[/name] [name]Rebecca[/name], [name]Helen[/name] [name]Susanna[/name], [name]Helen[/name] [name]Emily[/name], [name]Helen[/name] [name]Kerensa[/name], [name]Helen[/name] [name]Emilia[/name], [name]Helen[/name] [name]Catherine[/name], [name]Helena[/name] [name]June[/name], [name]Helena[/name] [name]Jane[/name], [name]Helena[/name] [name]Karen[/name], [name]Helena[/name] [name]Catherine[/name].
[name]Jennifer[/name] [name]Helen[/name]/[name]Ann[/name] - [name]Genevieve[/name] [name]Helen[/name], [name]Josephine[/name] [name]Helen[/name], [name]Ginevra[/name] [name]Helen[/name], [name]Geneva[/name] [name]Helen[/name], [name]Genevieve[/name] [name]Anna[/name], [name]Josephine[/name] [name]Anna[/name], [name]Genevieve[/name] [name]Catherine[/name], [name]Josephine[/name] [name]Catherine[/name], [name]Ginevra[/name] [name]Catherine[/name], [name]Geneva[/name] [name]Catherine[/name], [name]Genevieve[/name] [name]Elaine[/name], [name]Josephine[/name] [name]Elaine[/name], [name]Ginevra[/name] [name]Elaine[/name], [name]Geneva[/name] [name]Elaine[/name].
Good luck! And congratulations on your pregnancy 