Me and my gf had sex without condom in the shower and i surely pulled out before ejaculating. we had sex on july 22 and now july 28 she started getting pimples suddenly which she doesnt normally get. is this pregnancy?

The only way to know if she is pregnant is to do a home pregnancy test. Your activity definitely puts you at risk of having a pregnancy. If you do not want to have a baby, you need to see a doctor and use more reliable birth control. Meanwhile, do a home pregnancy test and use the first urine of the morning as it is the most concentrated. Good luck!