It was the end of day of of the cycle and intimacy happened in which blow job happened and also grinding of penis with brest happen leading to ejaculation on breast and stomach after which we dressed up and went to market for 20 min during intimacy no penitrative sex occured no fingering occured also I was wearing a panty liner after Coming from the market about 18-20 min later I took bath I am worries that can some sperm from bathing from my upper body could drift with water and cause preganancy what are the chances .