Confused again

Last month I was supposed to start my cycle on the 12th. I spotted on the 7th then started full cycle 2 days late on the 14th. This month my cycle is due on the 14th and on the 10th I spotted and since nothing. Its been this way for 2 months now. I don't understand why this is happening. Our fertile window was the 26th-2nd. We BD'd on the 25th, the 27th and the 2nd, so I could be pregnant but I don't know or it could just be my cycle is going to be this from now on. Any insight on this?