BD record keeping. ;) help!

Alicia • Mommy of 4 boys..22, 19, 16, 14, and my sweet 4 year old daughter. EP 11/13, CP 03/16 PREGNANT WITH #6 ❤️❤️❤️❤️❤️❤️
If I bd last night, do I record it as today or for yesterday??? If it was after midnight then was it considered today?? Does it matter? Lol! Thanks girls!!!