Can someone explain to me what's going on?

Okay so, I had sex October 21st, 22nd, and 27th. Which is when flow says I ovulated. I got my period Nov. 9th-11th. And I had sex again the 12th and 16th. I'm on CD 12 and I'm really bloated, and my breasts are full. I've had some tiny cramps on my left side. I'm hungry all the time And I sleep a lot , way more then I usually do. I don't think I'm pregnant , but could there be a chance I am ?