Help pls!

So the first day of my last period was Oct. 7th.

It started out extremely light and lasted over a week. I tend to ovulate late, and got a + pregnancy test Monday night. We haven’t been trying so I’m not sure exactly when I ovulated. The line on my test is still extremely faint and I’ve had a chemical pregnancy before so I think that may be happening. My question is could I still be just really early on for the line to show up? I’ve been having headaches, I’ve thrown up, sore breasts etc. how far along “should” I be?