Last period was around feb 28/march 1 2019. i had unprotected sex march 24 pull out method. ive had cramps lower back pain each night since ?

See a doctor: It is too soon for a pregnancy test to show positive but consider doing one in 2-3 weeks. There are other causes of cramping though such as bladder infection, vaginal infection, ovulation, fibroids, unknown causes. If continues or worsens then recommend follow up with a gynecologist

Agree with Dr. G.: If you miss 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. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex. Get HPV vaccine

Dr Modi agreed