TTC #2 but I'm not sure what going oonnn?

Im 6dpo. & i have this gut feeling im pregnant. With my first i had a gut feeling like instantly like this. Like moment of conception, i knew. Idk how. But it took 4 negative tests, 1 invalid before i waited another 8 days before i got my BFP. I spotted once today. Shortly after sex (wasn't rough, didnt last long, not huge), it was light pink. I never had implantation bleeding with my daughter so im not even sure if its that. Im just antsy. Anything from anyone? Feedback? Ideas? Opinions? Unless I ovulated a few days earlier I have no clue..

Update: Wiped some bright red blood today not a lot but it was my first pee of today but it was bright red mixed with quite a bit of stringy CM? AF not due until Jan 2nd. Very light cramping this morning. Not painful but noticeable.