Period 6 days late, neg test, lower back pain stomach ache sore boobs leg cramp and headache, could i be pregnant when urine test was negative?

Maybe not, but...: Symptoms such as nausea (with or without vomiting), some fatigue (feeling less energetic), a sharper/stronger sense of smell, mild soreness/swelling of the breasts, and maybe some food aversions and cravings, can happen with other conditions, not just with pregnancy. However, if the pregnancy test was done less than 2 weeks after possible conception, a woman can repeat the test a week later.