Am I in the wrong by not allowing my baby's father's girlfriend to my baby shower next week?

oh no no no!!its your day not anyone elses and def not hers.she wasnt there when the baby was concived and has no right or say in anything to do with the baby sincd just bf n gf at the moment..invite who u want and if he dont like it oh well,he needs be there for the kid and respect u not comfortable or approve her invitation when there was never an intent to invite her in the begining and he need s get thru his head n get over it and quit acting like a female...best of luck to you grrl n congrats