I am 19 years of age and have a 20 month old daughter... For as long as I can remember I've had occasional pain during intercourse only when it's deep penetration. It's a very sharp pain in my lower left abdomen.. More recently (last 6 months) the pain has become more intense when having sex and i feel the pain in my lower left back also and aches on and off the next day, i also have a similar pain when I poo when I have my period?? I had an ectopic pregnancy 3 years ago, and was treated with methotrexate. The pain is similar to the pain I experienced then, but less intense. It is IMPOSSIBLE that I am pregnant by the way.... Could this mean endometriosis ?