I am using webhooks for triggering builds in jenkins, in Bitbucket i have enabled to send webhooks for pull requests creation and updation. it is not triggering when i do that.

But if i enable push also in Bitbucket it is triggering builds but also for the commits i make.

I want only to build only for pull requests, in jenkins i enabled build when a change is pushed to Bitbucket but it also triggers for commits.