Hi wednesday, your boyfriend does not need to ejaculate to get you pregnant. Pre cum seeps from the penis before ejaculation, and this pre cum also contains sperm. You said you had your period on oct. 11th and you had unprotected sex on oct. 27th, therefore you could possibly have been ovulating at the time. Not forgetting the fact that you didn't use any protection, it is probably a good idea if you buy a home pregnancy test if your period is late. Try not to stress if your period is late though as stress will delay your period even further. Have you thought about discussing contraception options with your doctor ? Anyway, good luck and I hope everything works out the way you would like.

Regards...

Suzy

Everything that suzy said was right. You need to go to the doctor and get on the type of birth control that suits you best.
Good luck, sarah