My period was on dec 21st - dec 25th. I had sex on dec 27 and used withdrawal method. Ovulation occurs on january 4th. Can I get pregnant?

Running close and . We hardly ever say never. Sperm lives 7 days though so if dating is perfect it is very low probability. Good luck.
It's possible! Sperm can live for days in fertile quality cervical mucus - just waiting for the egg! so it is possible that you could get pregnant - particularly if you ovulated a little early. If a pregnancy would not be a good thing at this time in your life, talk to your doctor about some birth control. Sorry to tell you this, but we used to call withdrawal "pregnancy planning!" good luck. Lgromkomd.