I’m a dumbass....Update

I know this is the stupidest possible question to ask but I’m going to ask anyways. Can you get pregnant using the pullout method. I had sex 6 days ago and ever since then I’ve been dizzy, nauseous, and had lots of very light pink /brown discharge????? Very unusual for me after sex. I doubt I’m pregnant but confused as I’ve never experienced these symptoms the week after sex before.

UPDATE: it’s been over 2 weeks now and my period is late. The discharge, nausea, and dizziness stopped. I feel like it’s too early to test. I don’t know if I should wait another week or go get a test.