any advice?

I'm about 2 weeks late. I have pregnancy symptoms, sore nipples, back aches, peeing every 5 mins, I feel like I'm on the verge of throwing up every second of the day, but I am getting nothing off of pregnancy tests. I feel like I can see a VERYx12 line. but idk if that's me REALLY wanting to see a positive, or if it's just what it is, nothing. should I go to the dr and get blood work? or is it not even worth it? have been ttc for number 1 for almost 2 years. thanks!