Tmi no pic please help

Ok I suppose to start my af monday no show still no show so me n my bf bding last night so I get up go to the bathroom soon as I sit down cramps in low belly feel like in butt was cramping like I had gas or had to do number two so I sat there for a min n finally a lil came out still had cramps at the bottom of the belly finally had a bowel movement this morning this having mild cramps but no cycle had gas this morning breast sore could I be pregnant