pregnant or not? hmm.

So for the past week I've had:
- sore boobs
- nausea
- tiredness out of nothing
- light cramps
- frequent peeing
- super emotional about not seeing my boyfriend for 5hrs because he's at work. 
And yesterday the nausea bomb blew up and threw up. I had sex during ovulation, no protection, he didn't come but I know that precum IS a possibility. 
I took a pregnancy test yesterday and it was negative. My period comes in around 5-6 days, should I wait to see if I miss my period and take another one. 
I just want to know why I'm getting all these symptoms and a negative, yeah it's kinda early to test but some people have done it and get their positives and whatever.
I don't know what to do, any advice?