What happens to an egg if the tube is blocked and there is a sperm traveling up the tube? Yhe result will be an ectopic pregnancy correct?

More likely. Yes, if there is a blockage in the tube either pregnancy won't be conceived, or there will be a higher risk of ectopic. If women are aware of tubal blockage, i often discuss an earlier ultrasound (6 weeks) to confirm that the pregnancy is in the uterus.