On 7th day of a 25day cycle I got intimate with my partner, no ejaculation or penetration no sex, just private parts rubbed, in fear of pre cum took an unwanted 72 on 8th day , but didn't get any withdrawal bleeding, had breast tenderness after 10 days of the pill, missed.periods for 4-5 days, did upt had a negative report, as well was suggested to go for beta HCG test , it came 0.1, negative I suppose , still periods hasn't come , my lmp was 11th September, doctor suggested regesterone medicine for 5 days , I have a trip this week can I take medicines after few days and is there still a chance of something wrong?