Pregnant or what?

I've posted quite a bit in the last week, because I am SO confused. I have had 4 faint positives and 4 obvious negatives in the last week. It was positive one day, negative the next. For a week, I've tested everyday and don't know what to believe anymore. I don't want to call my doctor until I get an obvious positive because of everything going on in the world (my anxiety doesn't like going places to begin with). My brain is so confused. I am nauseous, peeing quite often, lower back pain and as of yesterday a bit of cramping. I am also EXTREMELY emotional. I hate that period and pregnancy symptoms are so similar. Help.