Vitamin B6 can lengthen your LP. Worked for me - my cycles were down to 23 days and I managed to get pregnant with dd first time I tried it.

I have DOR too. What is your AMH?

When I did my medicated IUIs (that failed), my period would come on day 22 or so, my normal cycle starts on day 27-28, so I noticed that the meds were shortening my cycles, but they went back to normal once I stopped doing the IUIs.

Shortened cycles are one symptom of DOR I have read. 20-22 days is really short, especially if you ovulate on day 12. Usually DOR ladies ovulate earlier than that, around day 9-10, which is an indicator of poorer egg quality.

I would try to find an RE who specializes in DOR. It does sound like it's time to try IVF. Acupuncture could help lengthen your cycles too.

OP, please go get a few second opinions. If you have a low AMH and short cycles, it sounds like you are DOR. I feel like this RE is wasting your time and eggs, when you should be going directly to IVF.

I am currently on month 3 of Clomid, Ovidrel and TI, which has been unsuccessful since I just got my period as usual, making my cycle this past month 21 days. For the past 9 months, my cycles have been 20-22 days, which is clearly way too short. I have asked my RE about this and how we can treat it, but he doesn't seem to be doing anything about it which is making me frustrated. I don't know if there is a change my eggs could be getting fertilized but just not able to implant since I get my period so often. Plus, I have very low AMH so it seems like I am wasting eggs! Plus, I am so tired of having my period every 3 weeks - really sucks!

I ovulate around day 12, so a 9 day LP just isn't long enough I would imagine. I asked about progesterone but he doesn't want to try that right now. Unless I am missing something, can Clomid or Ovidrel lengthen your cycle? Has anyone else been in this situation, and were you able to do anything to lengthen your cycles?