How Do I Know I Am Pregnant

Patient: Hi, I’m MaryKate and my boyfriend and i had unprotected sex. I haven’t had my period in a month coming on 2 months. i took 2 pregnancy test but they come up negative. But i have symptoms of being pregnant. none of my jeans will button. only my stomach is growing. Usually when i gain weight its my face that gets fat but it hasnt.

Symptoms: Breast are sore when you touch them, I am very nauseous, I am craving buffalo bites and salads. I missed my period for a onth coming on 2 months. I have lower back pain.