Help!?

I'm currently 18w and 2d pregnant, yesterday I got a call from my OB-GYN telling me they found abnormal cells on my cervix. They wanted me to come in a year to get screened. After briefly talking to my sister, my boyfriend I came to the conclusion that I might have HPV. I called the doctor's back and asked them if they could screen for it, they said they could see if they could before thirty weeks.

Today, I received a call from the doctors and they confirmed that the cells were HPV. I hadn't had any STDs with any of my previous pregnancies. Never was a problem. My boyfriend had slept with a girl when he was in his teens who had genital warts and he swore up and down he was not infected. After finding out, we've come to the conclusion that it did infact come from her and him.

My question is, does HPV pose a threat to vaginal delivery since it's on my cervix? Could it cause cancer? Can I pass it on to my baby in utero? Can I pass it on to my two sons ( 1 and 2) and if it could be cancerous?

I'm upset with the news but I can't do anything about it now.