DC 3 shortlist is very short, help!

[Notrobusta]

Currently expecting DC three. Already have a DD and DS so have used our favourite names for them. We probably won't find out the sex of this baby so have to come up with boys and girls name. There just don't seem to be many we both like. Would love to hear the mumsnet wisdom on the following names.

Girls

Alexandra (nn Lexie)
Jennifer
Rebecca

Boys

Ephraim ( have always loved the name but wasn't brave enough to give it to DS1)
Edward

Any other suggestions much appreciated.

Ok, Rebecca and Edward are perfectly inoffensive.

I like Edward and Alexandra.

Ok, Rebecca and Edward are perfectly inoffensive.

Sorry for not checking back for a while. Thanks to all those that have commented and come up with suggestions. I change my mind daily on which my favourites are but think at the moment Alexandra is my preferred girls name although someone mentioned that Lexie is considered chavvy. I don't really get what a chavvy name is to be honest so was a bit surprised and it does slightly put me off.
Think Edward may become very popular so edging towards Ephraim but apprehensive that people may dislike it or mispronounce it.

Edward & Alexandra. Beautiful.