Stuffy nose & sneezing..??? Pregnant symptoms ?

I may be overthinking it,

but could having a stuffy nose & sneezing 3dpo be a sign of early pregnancy?? It literally only lasted when I woke up until late that night and completely went away the next day… I was sneezing the WHOLE day. 🤔

Not sure if it’s related but I also had diarrhea 2 days later & had little pangs in the lower part of my stomach.