Is it possable I'm pregnant?

I had sexual intercourse with my boyfriend and we did it with and without a condom but he says he "pulled out" but idk but hours after we had sexual intercourse I started my period. My period lasted it's normal routine 4 to 5 days max but afterwards like after my period had finished. I started to feel like nauseous but it would come go so i paid it no mine. But lately I've been waking up and my stomach hurts like i had constipation but idk if It's cause what I eat but anyways. I took a pregnancy test. The pregnancy test i used was one step so( - | ) meant not pregnant and that's what i got but - was really faint and the | was really dark so I didnt know what that meant but i freaking out please help is that okay if it like that 😢