My periods cycle from 28 days became 35 days the 45 days now 53 days my partner fingered but he wipped and washed his hand now my periods are 8 days late kindly tell what is this ?

Pregnancy worries?: Pregnancy is the most common cause of a missed period. If not pregnant, other causes of a late or missed period include: excessive weight loss or weight gain, increased exercising, emotional stress, having an illness, traveling, medicines (e.g.: birth control pills), hormonal disorders, etc… A home urine pregnancy test is very accurate 3 weeks after sexual activities. Tests are sold everywhere.