Help!!!!

Kelsie

I am 6 days late on my period I took a pregnancy test like 3 or 4 days ago and there was nothing it was negative and I been having the same symptoms I had with my first born bloated, swallow feet, lower back hurts, very tired, low energy, crampy down there and it feels different down there then usual and I dont know what do I don’t know if I should test again or I should get a blood test.