I have a similar problem kstan. I am taking 100mg B complex this cycle to try help (there is a whole thread about it somewhere, B6 is the one you need but you also need some B12 to balance it out so its best to take a complex).
Here is the thread:
https://www.babyandbump.com/trying-...gthen-luteal-phase-increase-progesterone.html
I also tried soy isoflavones on CD2-6 to increase the strength of my ov but I am not sure it did anything....
Lastly, I am trying progesterone cream (you will find differing opinions on that one) because lovely buddy in 2nd tri who suffered 5 mcs "took matters into her own hands" when her docs wouldnt listen and used the cream with, obviously, great results!
If you stalk my journal you can see how I get on with it this cycle if you like "guinea pig" styleee!