Yes. Finishing early doesn’t change your semen or your fertility. If you ejaculate in or near the vagina, pregnancy is possible, so use contraception if you don’t want one.
This question comes up more than you’d think, sometimes with the hope that finishing fast “doesn’t count”. It does.
Your semen is the same
Premature ejaculation is about timing. It doesn’t change what’s in the semen. In a group of men seen for fertility problems, researchers found no link between premature ejaculation scores and semen quality. So when you ejaculate, early or not, the sperm is there.
Inside, near, or before
If ejaculation happens inside the vagina, pregnancy is possible exactly as with any other ejaculation. If it happens just outside, near the opening, pregnancy is less likely but still possible.
And even before ejaculation, the clear fluid that can come out (pre-ejaculate) sometimes carries sperm. In a small study of 27 men, 41% had sperm in their pre-ejaculatory fluid, and in most of those cases a good part of it was moving. That’s one reason pulling out is an unreliable way to avoid pregnancy.
What that means in practice
If you don’t want a pregnancy, use contraception, whatever your timing. Condoms have a bonus here: they dull sensation a little, which can help some men last a bit longer (more in do condoms help you last longer?). For emergency contraception or any doubt, a pharmacist or doctor can help quickly.
If, on the other hand, you’re trying for a baby, premature ejaculation is rarely the obstacle. I cover that in does premature ejaculation affect fertility?.
Sources
- Sperm content of pre-ejaculatory fluid, Killick et al., Human Fertility, 2011
- Can a woman get pregnant if a man ejaculates near her vagina, i.e. without penetration?, The A Project (sexual health organisation)
- Premature ejaculation and erectile dysfunction in a cohort of infertility men: clinical and ultrasonographic correlations, Lotti et al., Endocrine Abstracts (ICE/ECE 2012)