What could it be?

I have been feeling very nauseated the past week and it has been three weeks since I’ve had unprotected sex and two weeks since having sex back to back. I’m used to a little nausea before my period but here lately it has been the worst! Certain smells make me want to throw up and I have had times where I felt like I could pass out at any moment. I have anxiety but now it seems a bit different so I’m not sure what’s going on. The nausea has been steady until today where I actually feel a bit better but still sick not to mention extremely tired. I can’t finish my food without feeling sick. I’ve experienced watery discharge where it feels like I’ve peed on myself. My boobs have been more sore than usual before I start my period and just last week I had a random nose bleed and have been a bit more emotional when usually before my period I have a really bad attitude. What could it be? And is it too early to take a test?