Chemical?

I took a test on Monday and got a very clear positive, not bright, but it definitely wasn’t to be missed. I took a few more over the course of the night, 3 total, and they all came back positive..

the next day it was there, but barely, today there’s almost nothing

Am I crazy? I’m thinking it’s a chemical.. my period is 2 weeks away. With my last chemical I was only a few days away from my period and it came early. If it’s a chemical will I bleed? If so when?

I feel like my body is failing.. I have a beautiful daughter, but it just seems I can’t give her a sibling even though that’s all I’d like.