Diaphragm

Whether alcohol affects your birth control really depends on what method you’re using. If you rely on birth control that requires you to use it before you have sex, like condoms or a diaphragm, then alcohol may make it harder for you to use your method correctly or to remember or to use it at all. Here’s more detail about how alcohol can affect sex and birth control.

BTW, if you’re interested a party-ready method, we’ve got you covered.

The diaphragm is a moderately effective method. For those who use it perfectly, it’s around 94% effective. For the typical user (and by typical, we mean the way most end up using it), effectiveness is closer to 84%.

In other words:

Of those women who use the diaphragm exactly as directed, about 6 in 100 will experience an accidental pregnancy during the first year they use this method.

Of those women who do not use the diaphragm exactly as directed, about 12 in 100 will experience an accidental pregnancy during the first year they use this method.