Am I...?

My SO and I had unprotected sex about 2 weeks ago and I have felt super nauseous starting last week. No vomit but Some times it gets so bad and I feel like if I don't lay down im going to vomit on everything. My boyfriends mom also pointed out that I have been eating a bit more than I usually do. And I have been urinating quite frequently. I know these are all signs of early pregnancy but im still unsure. I dont have money for a test yet and my period isn't due for another 14 more days. Anyone think there's a chance?