Follicles growth(getting ready for my fist IUI)

Kate • TTC 3rd year already! PCOS diagnosed.

Hey Ladies. I am at day 10th of my cycle. Yesterday was my last pills of Femara, today my first ultrasound(picture below)

I am wondering how fast do follicles grow


My husband will be home on the night of 14th and I am afraid to not miss the ovulation.

Last time I got a mature follicle day 17th and got the trigger shot same night, so ovulation day 18th.