So confused, need opinions 😣 17 dpo

So today I am 17 dpo. On 11 dpo I had bleeding, very very mild cramps, no clots. It started as spotting, to mild bleeding, back to spotting on that day. On 12 dpo I had almost literally nothing and then it completely stopped. I was suppose to actually start my period this past Tuesday (14 dpo) and still absolutely nothing. After 12 dpo, I have gotten very faint lines but visible within 2 minutes even got darker the next day. These past couple days, I can still see a super faint line.. but wasn’t as dark. Still zero sign of AF and I’m at the point I do not know what to think. I really need some opinions please. I made an appointment with my gyno when I got the really visible faint lines. I go on the 25th… but I am just so confused right now and could use some opinions. Also, my period is alway on time. And normally I have excruciating cramps every cycle. And the 2nd day I always bleed way heavier than the first.