I'm 16 and I'm worrying that my girlfriend might be pregnant because of my precome. One night we met and I placed my penis on her vagina (no where near the hole) and in the following morning she says she's feeling period like pain on and off in her stomach. So is she are can she be pregnant?

She would not know so soon that she is pregnant.

If you keep your pants zipped up, you will not become a father.