pregnant without ejaculation?

hi guys, i’m a bit worried and scared. my ex and i recently (last week) had unprotected sex — however because it was unprotected and i’m aware that a very small amount of women can still get pregnant from pre-cum, i made sure he wiped himself before entering then made him pull out after a few strokes (so he didn’t cum inside of me).

the morning after i was experiencing some pain in my lower abdomen — something that happens a lot after we have sex, but it always goes away after a few hours so i forget to follow it up.

a couple of days later i noticed some light pink discharge when i wiped myself. this happened for like 2/3 days. it’s only been a week so its too early to know for sure, but does anyone think the chance of this being a sign of pregnancy is high?