I had mostly oral sex yesterday, but he inserted his penis for a few seconds. now i have clear stretchy mucus and cramping. could i be pregnant?

Unprotected sex: At ANY time always has the chance of becoming a pregnancy, and/or one of many various std's: hpv (which causes cervical cancer), herpes, gonorrhea, chlamydia, crab lice, trichomoniasis, syphyllis & others. Using a hormonal birth control is generally a good way to protect against a baby, but condoms are really the only way to protect from stds. Do urine preg using first AM urine after period missed

Likely an infection: Although pregnancy is always a concern after any unprotected sexual intercourse, an infection may be also present. Get a urine pregnancy test (5-8 dollars) and if negative, then go see your primary doctor to get checked for any STD's.