Implantation bleeding?

Carly
So according to glow in supposed to start my fertile period on the 10th which is Tuesday. This morning, I had a feeling to take a pregnancy test and I didn't listen. I've already gotten three bfn's and didn't want to be let down again so I brushed it off. I took a nap and woke up with some mild right pelvic pain. Went to the bathroom thinking that's maybe what it was and there was a brown spot so I was like hmm that's weird.. And I wiped (TMI sorry) and nothing. Just a brown spot on my undies. Is there any chance that I could be pregnant? I'm so nervous to take a test. I don't want to let my husband down cause I always get my hopes up:(