Nevertheless, withdrawal is known as a better approach to contraception than non-e at all. Protection Against STDs Withdrawal does not protect against STDs. Lovers having sex should always use condoms to safeguard against STDs even though using another method of birth control. Abstinence is the only method that always prevents pregnancy and STDs. MORE INFO About Withdrawal Withdrawal is not a trusted way to prevent pregnancy. And it can be difficult for males to learn exactly when they should draw out or to have the willpower to take action. Even if they do, some sperm will leak out from the penis before ejaculation, which can then result in pregnancy.Copyright 2009 Advisory Board Company and Kaiser Family Base. All rights reserved.. A new strategy to protect against HIV infection An effective vaccine against HIV-1 remains elusive, but 1 promising strategy focuses on designer antibodies that have much broader potency than most regular, exquisitely specific antibodies. These broadly neutralizing antibodies can handle the high mutation price of HIV particles which makes normal, very particular antibodies worthless within a brief space of period.