Pregnant?

i think i might be pregnant and im really freaking out.

me and my bf decided to have sex (my first time)

we did it with a condom and it was great

a little few hours later when id go to the bathroom and wipe there would be blood just a little (now i think it might be implantation bleeding)

i wasnt too worried about it

then 2 days later me and my mom decided to go to the pool, it made me really nauseous and i had to try my best to not throw up this was like 18 days before my period

now 8 days before my period i get REALLY really hungry, my stomach is very bloated im constipated and gassy

im really fucking freaking out and i dont know if im pregnant or im overthinking shit someone please help