Mentrual cup TO CONCEIVE! Does it work?

I've seen some videos about conceiving with the mentrual cup and pre-seed or any other fertility lube!

The method is to insert and rub pre-seed (or any fertility lube) around the inside of the menstrual cup and also, insert some pre-seed or fertility lube inside you.. wait 15 minutes. Have sex and then insert the menstrual cup inside you for the night and take it out once you wake in the morning. Many in videos say it worked for them. But, I would like a little more reinforcement that it in fact worked for many more woman!

Thanks in advance!