How many times can you conceive afer having ectopic pregnancy?

As many times as you want. You might have Fallopian tube removed, after ectopic pregnancy as it is the most common location for ectopic pregnancy. But do not worry ! GOD has given you another tube and it will take care of further pregnancies. ( By the way, GOD has given every thing in surplus. For one kidney can do and you have two. 1/8 liver is enough to maintain healthy life and so on.)