Confused?!

L • ⭐️ God is so good! ⭐️ loving life with my husband and 2 beautiful boys 🙏🏼🙏🏼❤️❤️❤️
My period was due 9/24 but it is now 9/28 and still no show. I went off birth control in March of this year and since have had a regular period every month with about a 30 day cycle.
 I'm wondering what's going on.. I've taken 3 HPTs and they're all negative! I took 1 Friday, 1 Saturday, and 1 this morning first thing. I know everyone is different but c'mon! Some ladies posting their HPT with a BFP and  "3 days before period" caption. I don't get it.
I just read a mayo clinic article that said most accurate results come from a HPT taken 1 week after a missed period. I'm excited for what this could
Be but trying to stay calm. I've already been talking about this since Thursday and my husband said he doesn't want to anymore until we know something. I can understand!
I'm deciding between waiting until Thursday (which will be 1 week late) to take another HPT or go ahead and make a doctor appt??