Has anyone ever heard of this? I am on CD 7 and just finished 5mg of femara from CD3-7.
I had my first u/s of this month today and they were surprised to already see 2 13mm follicles. I am going back on Friday for another u/s. The doctor said to me today: "I bet you we'll be doing your IUI on Saturday."
On Saturday I will only be on CD 10. Has anyone heard of it being done so early?

DS#1: born Dec 29, 2013
TTC#2 since Sept 2014 - unexplained secondary IF
BFP #2: 11.7.14 M/C: 11.27.14 @ 6w3days
BFP #3: 04.19.2015 M/C 04.27.15 @ 4w3days
BFP #4: 10.05.2015 C/P @ 3w4days
Oct 11, 2015: Cycle 13. Starting Femara (2.5mg). HSG this cycle (all clear) - BFN
Nov 12, 2015: Cyle 14. Femara 5mg + IUI - BFN
Dec 10, 2015: Cycle 15. Femara 5mg + IUI #2 - BFP #5! C/P 4w4d
Jan 10, 2016: Cycle 16. Femara 5mg + IUI #3 - BFN.
Feb 10, 2016: Cycle 17. No IUI or meds. Taking a break - Natural BFP Mar 5, 2016!!!! EDD Nov 16, 2016
Moving to IVF March 2016
Beta at 10dpo: 21, Beta at 12dpo: 98, Beta at 14dpo: 264, Beta at 16dpo: 745
U/S 6w6d: single beautiful heartbeat of 121bpm - It's a boy!!!!
Nov 3, 2016: Our family became complete. Welcome DS #2.
Re: IUI on CD 10?
Jan 10, 2016: Cycle 16. Femara 5mg + IUI #3 - BFN.
Feb 10, 2016: Cycle 17. No IUI or meds. Taking a break - Natural BFP Mar 5, 2016!!!! EDD Nov 16, 2016
Moving to IVF March 2016
Beta at 10dpo: 21, Beta at 12dpo: 98, Beta at 14dpo: 264, Beta at 16dpo: 745
U/S 6w6d: single beautiful heartbeat of 121bpm - It's a boy!!!!
Nov 3, 2016: Our family became complete. Welcome DS #2.
I've also been an early-ish ovulater. However, my RE relied more on bloodwork than just follie size to time everything, which turned out to be a really good thing for me. One my last femara only cycle, I technically had one mature follie on day 10, but my eggs weren't ready til day 12, and then I ended up with 3.
Fast forward to my first Femara + Follistim cycle (with IUI, we did TI before), my follies were really slow to grow (compared to my previous cycles). The day before my IUI, I had one at 19, and 2 at 15, so we thought I had an extra day or so. Turns out the clinic called me in a panic that afternoon saying I was about to o and to get my ovidrel in that night and come for IUI the next morning. If we had waited for this to look like my other cycles, I likely wouldn't be pregnant now. IUI was on CD13. I can't stress enough how good monitoring (not scheduled in advance on a specific day but depending on how THIS cycle evolves, with u/s and b/w) is important.
FX this is your cycle!
Jan 10, 2016: Cycle 16. Femara 5mg + IUI #3 - BFN.
Feb 10, 2016: Cycle 17. No IUI or meds. Taking a break - Natural BFP Mar 5, 2016!!!! EDD Nov 16, 2016
Moving to IVF March 2016
Beta at 10dpo: 21, Beta at 12dpo: 98, Beta at 14dpo: 264, Beta at 16dpo: 745
U/S 6w6d: single beautiful heartbeat of 121bpm - It's a boy!!!!
Nov 3, 2016: Our family became complete. Welcome DS #2.