My regular period date was on December 13. I had to take medicine to delay period so I took such medicine since five days prior to December 13 and then I terminated. I had unprotected sex so I took one ipill each on December 10 and 14. Later I had periods starting on December 19 and I had unprotected sex on December 23 and I did not take any medicine this time. Since as of January 26 I do not have periods, I took pregnancy test on January 21 and 26 which came negative. Am I pregnant? What should I do?