Diaper shower

Amber • SAHM to a beautiful, smart, energetic 2 year old boy and his newborn brother!!
I am 33+3 with my second son and my friend was planning on throwing me a diaper shower instead of a full baby shower since this is my 2nd baby in 2 years. We were planning on having it on January 24, which would make me about 37 weeks. We also have her daughter's birthday on Jan 10 and my son's birthday party on Jan 17. I am thinking of waiting to have the shower after the baby is born. Has anyone else done this?