Something else? Ask Aunt Vadge – bottom left of your screen!
Dear Aunt Vadge,
Last night I gave my partner a blow job, he came, cleaned up with tissue, and then later, as things continued, his penis was rubbing against my labia and near the vaginal opening. It’s hard to say how much time passed between him cleaning up and that contact, but probably at least 15 to 30 minutes. Should I take Plan B just to be safe? My periods are irregular, but it’s been 25 days since my last one. I’m not on birth control for a few health reasons. I just want to know if I should go and get the morning-after pill.
Thanks,
I Know I Should Know This
Dear I Know I Should Know This,
The risk here is very low, and going on what you’ve described I don’t think you need Plan B. The reason is timing and biology: he ejaculated during the blow job, wiped up, and then 15 to 30 minutes later his penis only touched the outside, with no fresh ejaculation near your vaginal opening. Sperm are surprisingly fragile out in the open – once semen is wiped away and what’s left dries, the sperm die within minutes. Can dried sperm get you pregnant? In a word, no – cleaned-up, dried sperm can’t get anyone pregnant.
It’s the inside-the-body story that’s different: sperm deposited right at or inside the vagina can survive for several days, which is how pregnancy happens. Sperm out in the air, on tissue, on skin? Minutes, and they’re gone. Our piece on his penis touching the outside walks through this exact scenario.
So you can relax. If your peace of mind would really settle better with it, the morning-after pill is safe and available over the counter, and works best the sooner it’s taken – there’s no harm in taking it for reassurance, even though the odds here really don’t call for it. That’s entirely your call.
The one loose thread is your irregular cycle, which makes ‘where am I this month’ a bit of a guess. So rather than me declaring it flatly impossible, the clean way to be sure is a home pregnancy test if your period doesn’t turn up when you’d expect it. Our guide on when you can and can’t get pregnant is worth a read for getting to know your own pattern.
And for what it’s worth, this is a brilliant question, not a silly one – almost nobody is taught the actual lifespan of sperm, so you’re far from alone in wondering. Ask away any time.
Warmest regards,
Aunt Vadge
This is general information, not a substitute for personalised medical advice.
