I had my first child back at the end of March and I have been breastfeeding ever since then exclusively. On Thursday June 4th my husband and I did have unprotected sex. I have started birth control but keep forgetting to take it so i'm sure it isn't effective. Yesterday and today I have been experiencing cramping that comes and goes. It is in my abdomen but also in my back at times. It sort of feels like period cramps but it's almost been a year since I had my last period so I'm sure I have forgotten a little bit on what exactly they feel like. I have not spotted at all so I keep waiting to get a period but it still hasn't come. Could I be pregnant or just taking my period a little while to get here? Thanks!