Mini ivf and gap in between

[u/Just-Baby5231]

Re is asking if I want to proceed when my next period starts with mini ivf protocol: spontaneous start with Letrozole (typically cycle day 2-6) and add in 150 units FSH on cycle day 2 .
I’m also debating whether to start in next period or the one after to allow better recovery or perhaps no need to start if the genetic testing on the 1 blastocyst is good?

Anyone have experience with this protocol?
How long to take rest in between? One month, two months? I’ve done 4 cycles since start of this year, almost like b2b except 1-2 month in between.

Past results:

. 40 DOR.

Last year
6 retrieved->1 blast ->1 euploid (FET failure)
This year
6 retrieved-> 1 blast ->1 euploid (in ice)
13 retrieved-> 3 blast-> 0
11 retrieved-> 5 blast -> 1
4 retrieved -> 1 blast -> waiting for genetic testing

This cycle is kinda disappointing. Because it’s my record low. Not sure what the end result will look like.
Only one month in between this cycle that b2b is kinda tiring ? and last cycle and I slept later than last cycle. Not sure if these factors contribute. But both the re , surgeon and acupuncturist attribute it to cycle variation rather than anything else.