possible ectopic ?!

I've been suspecting that im pregnant , I haven't tested yet as I'm afraid it would be to early ... at 4dpo I had mild pinprick cramps in my uterus/tube area . Around 8-10dpo I feel very nauseas, cold , weak, I had a mild fever and I feel jittery like I've had too much coffee and shaky . Everything I've read on google (google can be Satan sometimes) has said that implantation can't happen until 6dpo and if I did implant at 4dpo it could be ectopic as it would still be in my tube ... jitters , feeling cold and nausea are all signs of ectopic as well . Now I'm extremely worried but I'm trying not to freak as I haven't even tested yet . So I'm coming to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> for advice . I have a suspicion , should I go to a doctors tomorrow and get it checked or should I wait until Thursday when I planned to test to see if I get a positive result and then go to a doctor . I know if it's ectopic it's extremely dangerous . Anyone else have an ectopic and experience this ... or anyone else had a viable pregnancy and experience this ? 
Update because I know it'll be asked : I haven't experienced any bleeding at all but I've definitely experienced some cramping , almost like period cramps but more faint , and every once in a while I'll get a sharp twinge pain as well.