Period on progesterone?

Megan • 👶 💙. 5 IUI’s❌. IVF Mom💉🤰🎄2024

Has anyone had this? Had my <a href="https://glowing.com/glow-fertility-program">iui</a> on 7/29. Still on progesterone 3x a day no period. Will it come after I stop if my test is negative tomorrow?