Could Stress Be Delaying My Period, Or Is There A Risk Of Pregnancy From Indirect Sperm Contact?

i touched sperm that was sitting on my skin for a minute exposed to air then wiped with a tissue and some leaked through the tissue onto my finger then i touched my vagina. this happened a week before my expected period. my persiod is now a week late. i experianced light pink spotting once. i have been very stressed this month and have a history of missing oeriods due to stress