Hi... I had sex with my boyfriend one time... now I don't have my period.it is missed by 10 days.. and I have white discharge.. I had done first pregnancy test in my home at the first date of my missing perios.but it is negative.. but the white discharge is still coming.. I had cramping.. and backpain.. is there any chance for pregnancy

I'd suggest taking another pregnancy test. Sometimes the levels are too low to initially detect.

If you continue with the cramping and back pain, I'd see your doctor.

While some couples try for a year and don't get pregnant, others make it on the very first time. You may not have waited long enough for the test, and be sure to use the test first thing in the morning and follow the directions properly.

Also if it continues see your doctor to see if iit may be an infection or some other issue also.