Any advice?

Last month, I was perceiving positive pregnancy test few days before my period the day that I was supposed to start my period I had brownish discharge like spotting so I just assumed that I was pregnant but then throughout the day or the next day I started to have red spotting so I just figured I had a chemical and I started my period. It’s now the next month and I am seven days late on my period, getting positive pregnancy test, but only on storebrand test, I only gotten one positive on digital first response but as in line 1st first response, it’s been negative. but I’ve gotten faint positive all store brand test I’ve gotten positive it’s a little faint but positive. I’m having pregnancy symptoms. I don’t know what’s going on. Maybe you can give me some answers.