I'm afraid to test

I thought my period was going to be due yesterday. Usually Glow is pretty accurate and that was the assumed day. But nothing yet. I got a BFN on Saturday and Sunday. However, Sunday, Monday and today I experienced period like cramps in my right uterus intermittently as well as light pink spotting that was gone after wiping once or twice. 
I'm starting to wonder if I could actually be pregnant but I'm so afraid to get another negative. I like the hope I feel right now and I just don't want to be disappointed yet again....