Periods off the pill are so powerful.
It's true that pre-cum is fairly weak although a friend of mine did get pregnant with a similar technique.
No more hormone birth control for me. I'm going with the diaphragm
A Diaphragm would hold the blood while you are enjoying intercourse.
The pill will dampen your sex drive. We prefer barrier methods.
We prefer the diaphragm because there's no risk to your life or future fertility.