Estradiol IVF

Vivian

Can someone help me understand what estradiol is? I’m trying to understand what exactly does it mean. Today is CD 12 and my estrogen level is above 3000. tonight I also triggered at 10pm. If I’m correct it tells you how many mature follicles I might have. I will be going in for my retrieval on Sunday. But my ultra sound only showed I had 8 nice size follicles. I’m confused 🤔