pms symptoms ?

my fertile window was the 12th-18th i had sex at 1am on the 24th using the pullout method and as of yesterday (the 25th) i’ve been really bloated. This usually happens during pms for but for some reason i am paranoid i may be pregnant… But it’s not possible to feel symptoms this early right ? and i haven’t been able to take a plan b but my friend can get me one this morning (the 26th) is it too late to take a plan b? is the bloating just pms i’m just freaking out and literally never having sex again it’s just not worth the stress it’s putting me through