8days late but pregnancy test negativešŸ˜«

We been trying to conceive for about 6 months still nothing until maybe now. I was suppose to get my period around 10/30/15 but I'm irregular so I expected it on or around November 3rd somewhere around there but I never got it smh I took 2 digital pregnancy test and one first respond and all negative. I been feeling a bit nauseous, cramping, but nothing else. Could I be pregnant ? Or could my cycle just be changing ? Because 7 years ago November 5th I had my first born. Or could it still be too early for a test?Ā