Neg test?

I took a preg test and it was negative but I didn’t use morning pee (I waited four hours like the website said) and then the following week, I took another one with morning pee and it was also neg. I’m just worried about that first one and how it wasn’t morning pee. Am I fine? I’m just an anxious person and it’s making me think about this again. It was the Walgreens brand which I think is just the first response but a little cheaper bc Walgreens put their name on it - so good quality right? I got my period (same heavy flow and right on time) but I would also like to double check that this is okay because my nerves will not let me calm down.