Pregnant...?

Okay so a couple weeks ago I missed a pill (like didn't take it because my dog ate it) and I had unprotected sex like the next day or 2 after, but my boyfriend and I never use condoms. My period is like 22 days late. I would think I'd be back on schedule by now tho. I took a pregnancy test but it was a drugstore one and it said I wasn't. I also felt really nauseous last night and still do this morning. My boyfriend is being really rude about this whole thing and really insensitive. I'm just wondering, should I stop the pill for a week to see if my period comes?