My period is due on the 17th but I've been lightly bleeding all week. Like ridiculously light which is not what I'm used to. But some days I would and the next day I wouldn't. And it's so light it doesn't even go on my panties. And it only last about 10 minutes. I don't know what it is. And I don't feel like my period is gonna start. I've been having symptoms of nausea, back pain, swollen breast and you can see my veins in my boobs. I have tons more! I also went to the doctors and took a pregnancy test there but it's negative. But they couldn't do a blood test. I'm so lost. I take some at home and I get faint positives but I digitals I get negatives. Help me!