By the way, cigarettes reduce effectiveness of bio-identical estrogen and progesterone when taken orally, meaning concentrations of both these hormones are significantly less in the blood when smoking.
Certain hormones, medications do not affect clotting and bio-identical estradiol when taken non-orally (similar to ciswomen who produce hormones and still undergo surgery) barely affect clotting so that these logically needn't be stopped before surgery BUT check with your surgeon before and follow their advice.