Hi jetjets,
www.endo.org.uk is the website of Endometriosis UK which is a good site for all women suffering with endometriosis.
Did you have a follow up appointment with the surgeon after you had recovered from the laparotomy?. He should have explained exactly what was found along with future implications for fertility.
I would say that generally speaking fertility does decline with age; it may be as well that you may need further surgery in order to conceive.