Could I be further along ????

On Friday the 4th I went to the er and they didn't say anything about pregnancy. On Monday the 7th I took a test at night and it came up positive. A clear positive. I wasn't due for my period till the 15th of March. Which means I got a clear positive 8 days before my period was even due. I than ended up in the er on the following Friday with stomach flu and not feeling well. They took my blood and told me my hcg was 172. Than on Sunday I got it taken again and it was 350. I got my blood taken every day for the whole week every second day. To make sure everything was good and I don't find out the results to that till Monday. Would I be further along with how early I got a positive? Like a week early ? Ps Friday the 4th I took a pregnacy test in the morning and it came out negative than the following Monday I took one and it came out positive on a FRER. But faint on those 25ml ones so I know My levels were over 25 when I took it on Monday ! Am I further along someone please help and answer this!