Scared and unsure

I only had sex w my bf 4 times this month. He pulled out every time. And I didn’t have sex on my ovulation days. I should be getting my period in 5 days but I’ve been nauseous for the last 7 days and today my boobs hurt so bad. I’m way too scared to test. I’m not ready for another baby at all. Would I be able to feel pregnancy symptoms 12 days before my period starts?! Help please