How does pre-seed work???

Amber

So I have heard a lot of success stories on here about using pre-seed, so I finally ordered some and it comes with applicators????? The directions don’t say anything about inserting it up and in there..... so how much do you use each time??? So you fill an applicator up completely??? Half way??? Any suggestions ladies :) I’m ready to be pregnant again and pray this time God let’s me keep them