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Low estradiol possibly caused by weight loss

Just received my quarterly lab results back. I have been on 100mg cypionate weekly for the last six months with fairly consistent free/total t results and an E2 having been in the high 20s until this last draw. My E2 dropped to 9 pg/mL (ref range 8-43). Free and total numbers only slightly lower than before. I am not on an aromatase inhibitor. I have lost close to 30 lbs in the last 3 months. Is my weight (fat) loss causing less aromatization of T to E2? What now can be done to raise me into the 20s again? Is the weight loss also contributing to my slightly lower free and total numbers? Thanks for any insight.