<human>: I [F20] went to high school with this guy, D [M21]. We've known each other for about 8 years, but were never really friends. While we were both home from school, we ran into each other and one thing lead to another and we had sex. 

Since that initial meeting, we've hooked up a couple of times since then but haven't really done anything other than hooking up. We don't even really talk other than to plan when we'll hook up next- although we do now get along, and generally have a good time together during and post hook up. 

Well, I missed my period. And he's the only guy I've hooked up with in months. I took a pregnancy test a few weeks ago and it was positive, so I hauled my ass to the doctor to make sure it was correct. It was. I've now scheduled an abortion as I am not ready to be a mother.

Should I tell D about the pregnancy I'm planning on terminating? And if I do, should I do it now or after I terminate the pregnancy? Especially given that we're both in finals right now and nothing is happening until finals are over.

Provide a brief overview of the text.
<bot>: Had sex. Got pregnant. Planning on abortion. Does casual hook up have a right to know? How do I tell? When should I tell?