<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 22 years old. I have taken 4 home pregnancy tests, and the all come back negative. I never have periods and the last time I had unprotected sex was the end of april. My breast and back have been extremely sore and I can feel movement in my stomach. Can I still be pregnant?  <response>: Hi, Thanks for the query. I understand your concern. Delayed periods with sore breasts lower back are few of the symptoms seen in pregnancy... but ve pregnancy test is confirmatory test. You can go for USG abdomen to confirmexclude pregnancy . This test may find other causes for your symptoms podovarian cyst In case pregnancy is confirmed to be absent, you should consult a gynecologist for cause specific treatment, Thanks. 