Feedback on my “check-in” wording

Need your help on how to ask something nicely. We are having a gender reveal next Saturday. The RSVP deadline was today. We invited about 40 people but have heard back from only 12. Many are not good at RSVPing but will show up to the party. So I would like to reach out to folks and do a gentle “check-in” and ask if they are coming. This is for food, favors, drinks, and cake purposes. This is what I’ve come up with. I don’t want to be to pushy. Please let me know if you have any feedback:

Hey Aunt Tonda! I wanted to touch base with you about whether you are going to attend the gender reveal party. I completely understand there’s lots going on so there’s no pressure to attend but just need an accurate head count for food/drink,etc purpose. Thanks! Hope you are well!!

Thoughts ? Feedback?