Is upper back pain , swollen tender nipples , night sweats & mood swings a sign of early pregnancy

See your MD: Symptoms to watch for early on include a missed period, headaches, tender breasts, nausea and lower backaches. If you have been sexually active and are experiencing any of these symptoms, it is important to take a pregnancy test.

Could be: If you had sex since your last period and missed your period by 4-5 days, do a home pregnancy test. If the result is negative repeat the test 4-5 days later unless you get a period by then. Use first morning urine and follow the instructions for the test carefully.