it's been 2 days

It's been around 2 days since I was >!raped!< in a parking lot two minutes from my house. This isn't the first time anything like this has happened, but it's the first time its "gone this far" I guess, to the point where he had time to finish. I have not reported it to police because I don't want my family to know. I'm only 18 and the biggest worry I've had aside from STDs is that I may be pregnant even though it's only been a few days, I'm still scared fucking shitless.

I was heading home, but after that I felt too disgusting to even enter the house, so I went to a friend's place and she saw me through her camera and told me to just go inside and that they'd be home soon. I've only told her what happened, and we went to the local pharmacy and bought 2 plan B pills (2 because if you weigh a certain amount, you need more/less).

Besides worrying about pregnancy and disease, I'm more scared of the fact that I haven't changed mentally. I feel nothing, I haven't even cried. It's like it didn't even happen almost, is that normal? The most I've felt is disgusting, and that was only in the beginning, and a little after I showered. Have I just not processed it yet, will it get worse?