pregnancy or not ??!! Please help!

I gave birth to my baby 7 months ago.....

Although my baby is formula fed my breast completely dried up about a month after having my baby I recently missed my period by 8 days but this is where things get complicated I took birth control up until my last period the day I started my last period I stopped all birth control pills (my last period was August 19th 2020) had unprotected sex but like I said I’m 8 days late I’ve taken 2 pregnancy test both negative but my breast are sore my back hurts super tired & hungry etc. all the pregnancy symptoms plus I noticed lactation my aurora is darker and I have the little milk bumps is it possible I’m pregnant and I’m still to early or can my breast still have milk like substance without being pregnant ???

I feel stupid for asking but truly confused 🤷‍♀️