Pineapple Core??

Okay, since I'm on a new cycle. I decided I'd try pineapple core this time. I'm not really sure all the details on it, I've watched a few videos on YouTube but they all say different things. Me and my husband are bringing out the big guns this cycle, so if anyone could please help me understand the do's and don'ts for pineapple core that would be awesome! And if anyone had a successful BFP with pineapple, please let me know!