<prompt> The most common site of implantation in ectopic pregnancy is -AmpullaFimbriaeBodyInfundibulum  <response>: Ans-A Ampulla .The most common site of ectopic pregnancy is a fallopian tube as if and in fallopian tube the most common site is Ampulla 55.Sites of ectopic pregnancy in fallopian tube in decreasing order of frequency :AmpullaIsthmusInfundibulumInterstitial 