Possible pregnancy

I have what I would describe as a pretty regular schedule. Only in the last month have my husband and I finally started to try to conceive. I had period-like symptoms earlier in the week (cramping, lower back pain, moodiness, etc.). But I have not got my period. It's three days late according to my track. I took a test yesterday but it was negative. When I was pregnant with my son 4 years ago, this same thing happened and I tested positive. Despite testing negative, is it still possible that I'm pregnant. I know it sounds odd, but I just feel like I am. Has anyone else experienced something similar to this?