Htc strips

Naz

I bought 2 boxes of hcg strips and looking at the instructions it said to let the strips and urine come to room temperature before testing. I didnt try that the first two mornings i did them. They were negative. Is this really necessary? I feel like im pregnant cuz my boobs are sore, backaches and my stomach has been hurting the past few days. Should i test tonight again? Period according to app is not due till thursday.