Could 4 positive pregnancy tests at 9DPO be accurate?

I got 4 positive pregnancy tests this morning. I honestly wouldn’t have tested if i didn’t have a very vivid dream that I was pregnant. (I don’t have many symptoms) I woke up and took a test, it had a very faint line so I took another which was a bit clearer. I went to the drugstore and got 2 other brands, they were also positive. Now im nervous because im apparently 9DPO but I don’t know because my tracker has been a little off in the past and my cycle is irregular so I don’t know what days exactly im expecting my period. Im nervous they could be false positives but im so happy and excited. Im also aware that first pregnancies have a 50% chance in being a chemical pregnancy or miscarriage and I’m terrified to ge tan period in the next couple days. What should I do? Am I for sure pregnant?!