Implantation + eating Pineapple core

I have a friend that told me it is important to eat pineapple core for 5 days after ovulation. 
Have you guys ever heard that? I did some research online and I didn't find a lot results but still would like to know if you have done that before:) 
I had a chemical pregnancy before so this month I'll try what I can to help my  baby to sticky to me!:)