Hello, I'm a eighteen year old and I think I might be pregnant. Over the past three months I've gone through the symptoms of fevers, dizziness,moodiness, nausea, frequent and increased urination. Now it's been 4 months since I last slept with my ex boyfriend who was much older than me and we stopped using protection which I now realize was very ignorant. Now I have constant headaches, my stomach aches or irritates me everyday, I'm always nauseous and tired. However, I still have a period each month and I am not showing although my last period was a little funny because I didn't bleed like I normally do because my period was a bit shorter and I had cramps even after my period went off. Yet, I am not showing so how could I be pregnant ? Should I buy a test ?