11 dpo negative prgncy test. sore/swollen breasts, cramping/twinges 2 days ago, lower backache, gas/bloating? all very unusual for me

Wait...: If you suspect you could be pregnant wait one more week and repeat pregnancy test. If negative and symptoms persist follow up with your doctor for formal evaluation.

Unprotected?: Have you missed and cycles? Missed periods, early morning nausea/vomiting, breast pain/fullness, weight gain are signs of pregnancy. If you have had unprotected intercourse, I suggest a repeat pregnancy test. I f you are protected, get a physical exam