1st day of lmp was 4/6. cycle ranges 22-27 days....boyfriend put penis on lips but didn't enter. period didnt come on 5/1.....bled on 5/10-5/11..preg?

Probably not, but...: If worried, can do a pregnancy test. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a negative result may be due to testing too soon.

Likely no: Late bleeding may just be a late onset cycle. You should run a pregnancy test to rule out an early miscarriage. You are at rid ask even with what sounds like minimal exposure. Remember practice safe sex with birth control and protection. If your cycle lasts longer or is heavier than usual see you doctor. All the best.