When should i retest !! Please help :(

Sarah
I took a test that had come out faint positive very faint but it was there ! Then 2 days later my af showed after being a day late started on wed spotting and light Thursday a little more blood but not heavy at all then Friday spotting and it was gone today only when I wipe very very little would you just call this your period or could I possibly be spotting if so when should I wait to take an hpt