[blumemusik♫]

Like Shannon said, it's highly unlikely she'd be experiencing any of these symptoms yet. I'd also say, you should wait until she's missed a period before taking a test, as it'd be most accurate then.

She may be having a hysterical pregnancy, which is where you basically kid yourself into thinking you're pregnant, so your body exhibits some of the symptoms.

Stress delays periods, so wait until after it was due to take the test, and don't presume "oh, she missed her period, she's pregnant," because that may not be true.

And if you know you're meant to be using protection, use protection!! And common sense!