Faint BFP then nothing. Possible miscarriage?

I don't have a picture but it was a definite positive test taken 12 DPO. Continued to test for 3 days afterwards receiving no more positives. Had my period with more painful cramping than normal. Could I have miscarried early? Or was my BFP a false positive? Anyone? This happened back in January but I recently joined the Glow community and wanted some input. We are still TTC. This is month 8 w/o BC. Month 4 of tracking and "really trying".