I'm replying to this because I am the mother of two teen boys (16 & 18). I have always been a free spirited mother and my relationship with my sons is very open and honest.
Oh yeah, and I'm in Oregon.
Anyways, I digress...to the OP - you posted asking how to get him to come home and then you seemed to backtrack which was a bit weird.
Here's the deal - you're his mom. He has one blood family - yours. He is just 14. A baby really. He definitely is having sex if he likes that girl there. Trust me. He's 14...
He doesn't understand birth control in the heat of the moment. He's 14.
I say take some responsibility. Get some backbone (I don't mean this to be mean...truly) and tell him to get his butt home. If he doesn't like it too bad.
If he was out doing something bad (vandalism let's say) YOU would be the one to pay his fines and attend court with him etc. So while he is under 18 it is YOUR responsibility to know where he is and what he is doing at all times.
I was a young mom (barely 18). I got away with everything when I was a teen because I lied like crazy to my parents. Yet they would tell you to this day that I was a pretty good kid. Hah.
I think my sons are good too...but things are starting to come out about certain activities that I would disapprove of and you know...it doesn't surprise me...knowing how I was when I was young.
I'm just encouraging you to open your eyes to this situation and things like potential pregnancy, STDs, drinking, drugs, bad choices. These happen in the best of families and situations right under your nose.
Trust me. I'm the mom of boys too.
Best of luck.
PS when I say I want my kids home, they just come home. I tell them that I miss them and love them and want to have dinner/ watch a movie with whatever and home they come. Our family unit is pretty tight though, we'd rather come home to each other most of the time anyways LOL