I think you will find that the progesterone really starts things moving for breast development. It does in people with ovaries, so should be part of our protocol too.
Usually, prescribers follow outdated guidelines and only prescribe a once-a-day-before-bedtime dose. Ovaries produce progesterone 24/7 so it makes more sense to take smaller doses several times per day. That is what I do.
Just be aware that progesterone can make you feel tired or sleepy, and if you suffer from depression, taking it during the day is not the best for you. Taking it before bed means you sleep through the sleepiness, depression, and dizziness that are common at the higher doses. YMMV.
I am happy that you are finally getting it though.