Better breast volume when I delay my estrogen?

I've noticed at the end of my injection cycles, especially if I'm late, I have increased breast volume and soreness.

I also feel fine like emotionally, energy etc

I'm just on bica for a blocker and EV injections.

I'm already injecting at basically as low as I can go at 0.1 ml of 40mg / ml weekly, so 4mg a week. We came down from twice that dose because my levels were pretty high at trough.

My last test had me at 194 pg/ml.

I can't accurately measure a smaller amount with my syringes.

Why might my body be doing this? Is there a way to reap the benefits? I really hated patches and pills and wouldn't want to go back and pellet implant is not an option to me at this time.