I had unprotected sex 5 days ago & he fully ejuclated in me when do I find if im pregnant?

Iwas on the contraceptive injection, for 6 months, my periods are mucked up, I've been on & off my period for 2 months, since I've had intercourse, I've been really scared & idont knoe if I'm pregnant but iwant to know asap, as I'm scared :( I'm only 16 but I've always wanted a baby, but how long do ihave to wait until I can find out?

Pregnancy tests are most accurate when done 12 days after ovulation which should be about 26 days after your last period. The simplest solution is to wait until your period is late and do the test.