Am I?

Rose 🌹
11 dpo, negative tests although I'm suspicious of a very faint line on an Internet cheapie earlier. 
Strange pinching all day, kinda like trapped wind, nauseous and got the WORST heartburn right now. 
I had a huge temp dip on 9 dpo which could have been implantation. Got an frer to test with tomorrow if my temp stays up. 
What do you think my chances are?