Pregnant?!?!?

Shy

So I had missed a period and called my doctor and she told me to wait a week and take a test so I did just that and my first test came back super faint and the other one was either extremely faint or negative I assumed it was negative but my bf swore he saw a second line. I have almost all the symptoms of pregnancy and I’m so scared to test again but we are both so sure I’m pregnant. I have it all the back pain the nausea all day long and even worse at night I started to get car sick for the first time my boobs are bigger nipples darker and the irritation I just have it all. Should I test again? Do you think I could be pregnant or am I just crazy???