What could these mean!!!!

So I took a pregnancy test yesterday and it was a solid positive. Took one this morning and it was positive just not as strong. First two test were first response. Took another a little while at work and it's faint. It was the one step hcg test. I previously suffered a chemical last month on the 24 and my test were all faint. And the same with my miscarriage in November. Could this mean I'm having another. So scared and nervous!! The top picture is the first test the bottom is the one from work.