Timing your ovulation doesn't work well because sometimes you can miscalculate. Pulling out early is also not a good way. If you are not in a relationship with someone and you are having sex, then condoms are very good. Not every woman has an identifiable G-spot. The G-spot can be found in some women a little behind the clitoris.
Some women can never find one.
You become wrapped up in a person. You develop good feelings and want to be with them all the time. You love intimacy with them. You like doing stuff with them and you can put up with all their peculiar little habits. You feel a bond and closeness with the person.