Why am I having cramps in my lower abdomen less than a week after protected sex with condom and pull out. Can it be pregnancy symptoms?

Pelvic pain. Pregnancy still a possibility. However bladder infections, gastrointestinal problems can give you those symptoms. Use condoms to avoid a sexually transmitted disease.
Bladder infection. You cannot get pregnant when there is no sperm. You have a urinary tract infection. This is very common when young females are sexual. It is not a std.