My long wait is finally over and FET is scheduled for Friday, just two more sleeps away

After 3 unsucessful attemps I am willing to try anything and want t know more about Pineapple, Grapejuice and walnut.
Do they really help in conceiving?
What is the best days to eat them?On day of transfer? Quantity? How many days? Anything else I can do to increase my chances to conceive..?
Thanks in advance for your advice!You guys Rock!

Leena