I had keyhole laparoscopy surgery 15 weeks ago to unblock my left fallopian tube & make new hole of the tube. It's been 3days I have this pain abdomen?

Call your surgeon. We do not have enough information to answer your question,as to the location of the pain and how severe.And any associated symptoms like nausea and vomiting and others Call your Surgeon with this information and follow up.
Call your surgeon. Post operative pain always requires a call to your surgeon for assessment.