Welcome to healthcaremagic,
Vasectomy is not effective immediately, therefore condoms should be used for the next 25 ejaculations or the partner must use contraceptives for the next three months.
As you had an unprotected sexual intercourse, there is a chance that you may get pregnant. Even if he has not ejaculated inside you, the per-ejaculatory fluid also called as pre-cum may contain sperms which can result in
pregnancy. So there is a very small chance that you may get pregnant.
I recommend you to wait for your menstrual period, if you miss your period then do a urine pregnancy test.
Urine pregnancy test are simple, rapid and reliable pregnancy confirmation test. If the test line is lighter, same or darker than the control line it indicates pregnancy.
If it turns to be positive, you should contact your obstetrician for further check up. Hope that answers your question.
Regards, Dr.Imaad
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