Hi Martinie13,
Oral sex is not an effective method of birth control, because even if all the sperm and semen were removed from the outside of the penis, there could still be plenty inside the penis that could potentially cause pregnancy. If ejaculation did not occur, then you can assume you had the protection level offered by withdrawal:
Withdrawal . If you're not comfortable with that level of risk, and it's been five days or fewer since the incident, Plan B is your best option. Since you two have been having unprotected sex, are you up to date on your STI testing?
Since it sounds like you do not wish to be pregnant right now, can I ask why you two chose not to use condoms? Too, would you be interested in discussing some more effective birth control options you could use?