My period didn't come.i have cravings peeing a lot i'm always so tired a lot of light cramping and back pain and my linea negra is dark may i be preg?

Pregnancy test: You will need a pregnancy test to find out. If it's negative and your period still does not start, repeat the test in one to two weeks.

Missed period: Yes, you may be pregnant. This may also be something simple like a urinary tract infection. I would start with a home pregnancy test which is very sensitive. If negative you need to see a medical professional. A good history, physical and urinalysis will usually guide you in the right direction