So Afraid and confused

pooja

I got positive..in yesterday test..3 pic..and when I tested today it was very very faint line..2 pics..1 month prior also same happened I got BFP on 10 dpo and ended up on period..I m afraid this time s again same going to happen..I will end up on period?..as per app I m 1 day late..and I m confused why this is happening.. don't understand..