Disappearing positive line

I'm 11 dpo. I took pregnancy test earlier. Very Faint Line. So I took another this evening. A clear dark line appeared way before control line did. I didn't have to squint or anything. Then after about 1 minute of seeing the line it dissappeared. I was going to take a picture of it. Has anyone had this ever happen and still be pregnant. I plan on retesting. This cycle has been so crazy. I ovulated early on day 13. With that I had bleeding. Never had this before mixed in with cm. Sorry if TMI. Then my chart shows a triphasic shift in temps. My test have all been negative up til today. My boobs have been sensitive. I've been nausious. Gassy. Cramping on lower side. My teeth have hurt. Metallic taste in mouth. Now cramping and pulling on left side. Am I pregnant. I'm going crazy here.