Girlfriend missed period by 5 days

Patient: Hi,my girlfriend missed her period by 5 days but I never ejaculated inside of her. Also I wore a condom. However I did finish on her butt cheek. Shes fairly irregular but I’m still freaking out. Should I be?

Doctor: Hello,thanks for contacting askthedoctor.comIf you have not ejaculated inside the vagina and also wore a condom d uring intercourse, then chances of pregnancy are minimal. Having finished on the butt cheek doesnt qualify for impregnation unless she has smeared the sperm onto her vagina thereafter.If her periods have been irregular, then this could be related to various emotional and psychological stressors during the cycle. However the best way to rule out pregnancy woul dbe to do a urine pregnancy test.I hope i have answered your query in detail,regards