Positive Tests but negative blood work.

I've never posted on one of these before! Haha

So yesterday I took 2 pregnancy tests and they both had faint positives. I got my blood drawn ams it was negative😣. This morning I had 2 more positives and tonight I took one and it's a darker line. Has anyone else dealt with this? I'm trying not to get overly excited, we had a miscarriage back in April. The pic below is the one I just took tonight. My period is due Monday.