Help!! Baby Shower

Shaye • Country girl, married to her country man... Living the country life with son!! Pregnant after ectopic with #2 April 2015
Hi ladies...I've been planning my own baby shower..yes no one has offered so I assumed plan my own..long story..but any who I sent out invites and no one has RSVPd is it rude to send out a text just asking if they can make it or not due to needing a head count any suggestions? Thanks