Have you taken a pregnancy test? Although it might be a little early to get an accurate result, you never know. Do you normally have regular or irregular periods? It could be implantation spotting, or you might be getting ready to start your period a little early. As for the nausea, it could also be pregnancy related or you could have come upon a stomach bug. The only way to tell would be to wait for your next period to come and then take a test.
I took a test and it came up negative but it could be too early and my periods are regular. So I guess I am gonna have to wait and see. Just wondering if anything else could be causing these symptoms