Hi experts, I'm taking Correctia as 30 days course, two times per day. usually I'll get my periods within 7 days. this time I didn't get periods for 7 days, so I took a pregnancy test, but it was negative. is there any problem? this month I did my exercise regularly, and also had a papaya a lot as we bought. I expected my periods on time else would get pregnant. but since both were negative result, I'm confused...