Hollie replies:

As you know, with any genital contact there is always a risk of pregnancy. According to our article What's the Risk? Easy Pregnancy Risk Assessments, intercourse without ejaculate gives you a low to moderate risk of pregnancy. If it's been less than 120 hours since this risk, you may want to consider Emergency Contraception.

Is there a reason you have not been using protection? Condoms are relatively cheap and easy to use AND they protect you from pregnancy as well as sexually transmitted infections (STIs).

You and your partner are at much higher risk for STIs than you are for pregnancy. If you AND your partner have not yet been tested for STIs, you need to do so now and you need to use condoms for ALL genital contact until then.

Check it out:

STI Risk Assessment: The Cliff's Notes
Testing, Testing...
What's the Risk? Easy Pregnancy Risk Assessments
Yield for Pleasure