Sending you best wishes for your pregnancy. 
With [name_m]Theodore[/name_m] & [name_m]Alexander[/name_m], I love [name_m]Sebastian[/name_m] the best. It also happens to be my fave boys’ name. [name_m]Christopher[/name_m] nn [name_m]Kit[/name_m] is also very handsome. For [name_m]Sebastian[/name_m], I like [name_m]Bas[/name_m], but also Bash/Bashy & [name_m]Seb[/name_m]. All the girls’ work but I particularly like [name_f]Jemima[/name_f] & [name_f]Rosemary[/name_f].
[name_f][/name_f]I would use a family honour name for the middle. I think it’s nicer for kids to have their own name and the tribute name in second. But some similar names you might like:
[name_f][/name_f][name_f]Anastasia[/name_f] (love this!)
[name_f][/name_f][name_f]Georgiana[/name_f]
[name_f][/name_f][name_f]Evangeline[/name_f]
[name_f][/name_f][name_f]Giselle[/name_f] (though perhaps too short)
Others:
[name_f][/name_f][name_m]Benedict[/name_m]
[name_f][/name_f][name_m]Maximilian[/name_m]
[name_f][/name_f][name_m]Dominic[/name_m]
[name_f][/name_f][name_m]Sylvester[/name_m]
[name_f][/name_f][name_m]Benjamin[/name_m]
[name_f]Tallulah[/name_f]
[name_f][/name_f][name_f]Seraphina[/name_f]
[name_f][/name_f][name_f]Arabella[/name_f]
[name_f][/name_f][name_f]Willamina[/name_f]
[name_f][/name_f][name_f]Josephine[/name_f] (Josie, [name_f]Posey[/name_f], Phina)