03/23/2012 01:15 pm ET

Binge Drinking Can Increase Pregnancy Risk For Women On Birth Control Pill

It would seem taking the birth control pill is only part of the equation for avoiding pregnancy in during college years.

The other part, judging from a recent story on Canada's Open File, is for contraceptive users to make sure they don't vomit up the pill, something which -- perhaps understandably -- significantly reduces its effectiveness.

Judging from the college students quoted in the story, it seems the combination of binge drinking, subsequent vomiting and unprotected sex could prove to be a potent baby-producing cocktail.

"I puke all the time and have sex with my boyfriend after," one student said, according to Open File.

"I don't really puke when I'm hungover, but I puke a lot when I'm drunk," another said. "And ever since I started University, I pretty much have sex every weekend when I'm drunk."

One student complained that birth-control makers should mention that vomiting increases the ineffectiveness of the pill, but, as Gawker points out, that warning is indeed listed.

From Gawker:

But, here's the thing: that disclaimer is on it. It's not huge (and how huge is huge enough? Bold-faced? 24-pt. bold-faced? 72-pt. bold-faced? Serifs?), but it's there, right in the instruction and warning pamphlet.

The women's health organization Epigee explains that "vomiting within two hours of taking the pill will require you to take a replacement pill."

The organization also notes that "if you took your pill two hours or more before you vomited, then it is unlikely that you will need a replacement pill."