When should I take a pregnancy test if I have a late period?

My period is late this month, and I'm afraid that I may be pregnant. The weird thing is, though, my partner and I never actually had actual sexual intercourse (in other words, there was no penetration). I'm wondering if the wet environment could still be a risk. I'm hoping that it's due to stress and fatigue with finals coming on that causing this delay. How long should I wait before getting tested?


Why do I feel guilty after orgasming?

Every time I have an orgasm (alone or with a partner) I have intense feelings of guilt. I was not brought up in a religious household and was never told to "wait until marriage". I've been in long term relationships with all my sexual partners so it's not like I feel guilty for sleeping around. It's getting to the point where I'm not enjoying sex anymore because I dread the feelings I have after an orgasm. Is this normal?