Birth Control

Beauty

I had unprotected sex with my partner on the day when I was supposed to take another birth control shot which I didn’t take. It has been 3 weeks now and I am having heavy nd tender breasts, backache, food cravings and aversions, fatigue and nausea at night. I took a pregnancy test but it came out negative. The symptoms have persisted. I am expected to get my period in 3 days. Could I be pregnant?