@ivfjourney5 just wanted to comment as mine was always like that, but I've always managed to get to transfer, & got BFP in feb (but sadly miscarried. what was your actual lining?
For my round I've just had I was upped to 14mg of estrodil from 10mg (all tablets split throughout the day so I took 3,3,3,3,2) and I've always had 3 x 200mg of progynova pessaries vaginally all at night (this is the same as when we transferred to my friend as a surrogate in 2017 for FET a day 3 which got our son).
6mg sounds very low. Are you on anything else?? My clinic used to do patches for when we did the transfer to my friend in 2017 but for both my rounds (first one started nov 2019 they haven't done patches since 2020 as they think just the tablets are better, but when doing a fully down regulated cycle they also use a time releasing hormone thing that sits under the stomach skin? Sorry to be vague on that it was last dec (though I might have it again this time).
I also drank a glass of pomegranate juice everyday which they advised as it's good for blood flow, & I walk my dogs a lot & still exercise by doing Pilates.