Does the PreSeed lube at Walmart actually help you get pregnant? What are some conceiving tips?

Definitely not. It does not help you get pregnant; it is a good user friendly lube for couples that need one. Otherwise it has no effect on chances of conception at all.
Here are some... This product is designed to simulate the features of natural vaginal excretion notably that in and around the cervix where becomes more friendly for sperms to survive, move, and "swim". Commercially and conceptually, it's attractive. How effective can it be? It seems still lacking scientific evaluation and proof. To be more certain, ask your gyn-doc for its details timely.