Could I be pregnant

Sabrina

I have been off the pill for 1.5 months now. I stopped it August 30th. I had my period when i first stopped it. I was supposed to start my period on September 30th but haven't had it yet. I took a test 2 days ago but it was negative. I have also been having some mild cramping. Could i be pregnant and my hcg levels aren't high enough or what do you guys think?