Positive and Negative Result

Me

I recently took a couple of pregnancy tests. The first one I took was a First Response digital test. I took it right after I got out of the bed, before I took my medicine (hypothyroidism), and it was positive. I have never gotten a positive result before. (Imagine my excitement!) The second test I took was a First Response Rapid Result (with the lines). I took this one later in the afternoon, I had already taken my medicine, and it was negative. I went and got blood work done Friday to know for sure. I just want to know what your opinions are?