Natural Emergency Contraception I Have Lots Of Cramping Almost A Month After Taking Emergency Contraception?

I have lots of cramping almost a month after taking emergency contraception? - natural emergency contraception

Hi, hope someone can help. My last natural period was 15 of 08 December. I had unprotected sex on 24 From 08 December, and has the "morning-after pill" 26 in the December, I then had a bleed that lasted 4 days, the 4th Janvier 09th I have not had time, but now I know a lot of back pain like cramps and time almost every day .... I have the AP test was negative, and should I worry? I really do not want to be pregnant .....