My cycles are usually 26-27 days. twice this year it went to 29 days. i had unprotected sex 3 days and 1 day before my estimated period but it never came. i'm almost 3 days late. how likely are you to get pregnant out of predicted fertile window?

Pregnancy has been documented from exposure during any day of a womans' cycle including during menses. If you're late because of pregnancy a simple urine pregnancy may be positive, although they can be falsely negative early. They are rarely falsely positive. Normal women occasionally skip a cycle. Do a test.

Pregnancy is known to have occurred from sex on any and all days of the cycle. , If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex : https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines Get HPV vaccine.