Withdrawal method doesn’t protect against any STDs. You’ve got to pull out each time you have sexual intercourse.
Some couples find that the withdrawal method increases anxiety and sexual frustration, which dampens their sexual pleasure.
If you’re a woman, your male partner must always be willing and able to pull out. As well, he needs to know when he’s going to ejaculate, which can be difficult if there are alcohol or drugs involved.
In general, the withdrawal method is very tricky. It requires that the man be aware of when to pull out. This requires lots of practise, so it’s not recommended for teenagers or men who are sexually inexperienced. Also, not for men who ejaculate prematurely.
If you’ve read the effectiveness section, you’ll also be aware that even if you’re sexually experienced, don’t ejaculate prematurely, and know when you’re going to ejaculate, you can still get someone pregnant. So if you don’t want to have children now, use another birth control method.