u/Jaded_Inflation_5702

I’m doing my first medicated IUI cycle with Letrozole and had my monitoring ultrasound today (CD9).

They found two leading follicles measuring 10mm and 12mm on my right side. My doctor told me to come back Friday morning for another ultrasound.

I know logically that follicles can continue growing, but I’m already feeling really discouraged. I had built this whole cycle up in my head and now I’m scared that they’re growing too slowly and that this cycle is going to be for nothing.

My clinic uses 14mm as their minimum follicle size, so I’m wondering if anyone has had follicles around 10–12mm on CD9 and then had them catch up enough to trigger a few days later.

For anyone who has been through Letrozole/IUI: what were your follicle sizes around CD9, and when did you end up triggering?

I feel like 14mm is still small and likely to fail.

TL;DR: CD9 on Letrozole for my first IUI, follicles are 10mm and 12mm. Going back Friday morning. My clinic’s minimum is 14mm and I’m worried they’re growing too slowly. Did anyone else have small follicles around CD9 that caught up?

Hello fellow IUI ladies! ❤️

I’ve been finding reading all your posts really comforting. This community has made me feel a lot less alone since the doctor prescribed this treatment, so I thought I’d finally introduce myself and ask for some advice.

I’m 33F, trying for our first. We started trying in early 2024, when doctors discovered a large dermoid cyst (11cm!) on my right ovary. It was removed in October 2024, and thankfully they were able to save the ovary. Unfortunately, I had some complications with hemorrhaging afterwards and wasn’t feeling well for several months.

We started trying again in spring 2025, but still had no luck. My husband (35M) and I were evaluated by a fertility specialist in January 2026, followed by an HSG (tube flush) in March. Everything has apparently come back normal, whatever “normal” means in fertility anyway! 😅

And now here we are: today is Day 1 of my first IUI cycle. I picked up my Ovidrel and Letrozole from the pharmacy, and my first ultrasound is scheduled for August 18.

I’m feeling pretty anxious about the whole thing. There’s the desperation of really wanting this to work, my fear of needles, and honestly just the stress of not knowing how uncomfortable the procedure itself is going to be.

For those of you who have been through IUI, do you have any tips for making the process more tolerable, physically or mentally? Anything you wish you’d known before your first cycle?

Happy to be here with you all, and fingers crossed for everyone currently in the trenches. 🤞