May be pregnant...

I am feeling a lot of symptoms of being pregnant. Some that I think are too early for me even if I was pregnant. I have been nauseous and my breast got bigger. I've been emotional and my waist looks wider. If I am pregnant I could only be a week or two along. Is it common for women to get early symptoms like this? When is a good time to take a pregnancy test because I'm scared to take one and get a negative that may be false. Please help