Pineapple and menstrual cups? TTC

Hi everyone! We have been ttc for a few months, <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> to a T but still can’t seem to make anything “stick”. I have watched a YouTuber who said she used a menstrual cup straight after the BD to get the little guys to stay in, and then also ate pineapple from the day after ovulation as it apparently helps with implantation. Has anyone tried these methods with success? TIA!