Vivelle 7 days post surge

Ally • 💙 40 • Married • TTC #1 💙

Has anyone else been prescribed Vivelle (estradiol; 4 patches) starting days 7 post LH surge in preparation for the <a href="https://glowing.com/glow-fertility-program">IVF</a> cycle?

I’m curious how that works? I thought estradiol was important after the first day of the cycle; not during the luteal phase.