Could I be pregnant? HELP!?

Okay Im 13 years old I havnt had sex with a boy or anything but I masterbate and im scared that the thing I master bated with had sperm on it I was in my moms drawer and I found a vibrator and I used it and I used hair brush handles and im scared some how I could have got pregnant. Please help theres a picture of my stomac for my profile pic does it look like a baby bump? THis happened like 2 months ago please help