Question

So my period was the 9th of September and I’m around 4 weeks pregnant. Well as soon as I got a positive pregnancy test I was having symptoms (6 days before af October 9) certain smells made me sick. I had stomach pains and cramps I didn’t really get normally and now I recently have pains shooting down inside my vagina it feels like. I wake up and feel nauseous and when I think about food sometimes I get nauseous. My boobs hurt and my nipples hurt on and off especially when it’s cold !

My period on the 9th of September was super light almost just spotting for 2 days usually it’s around 4-5 days for my period

What I’m trying to say is could I be further along ? Could the period not really have been a period?

I feel like I’m too early to have all these symptoms !