For the past 4 yrs my period has been coming late every month. But for the last 2 months it has come early. Last month it came 3 days early and this month it came 3 days earlier than last month for a total of being 6 days early this month. Why would it change so suddenly like that? My husband and I have been trying to get pregnant for the last month, but I am reasonably sure that I am not so my cycle coming early just doesn't make since to me. Someone please try to help me understand what is going on. I know why my cycle changed 4 yrs ago and began coming late. Before that it was always on time, you could set the calender by it. But I don't understand why it would change now. I am not under any unusual amount of stress or even more stress than I normally am, not overly worrying or working and othing has changed in my diet except that the last week I've been sick, which is odd in itself as I never get sick in the summer, only the winter with a sinus infection and runny nose and beginnings of broncitis, which is what I am expereincing now. Can someone please explain this to me? About the period being so early I mean.

For the past 4 yrs my period has been coming late every month. But for the last 2 months it has come early. Last month it came 3 days early and this month it came 3 days earlier than last month for a total of being 6 days early this month. Why would it change so suddenly like that? My husband and I have been trying to get pregnant for the last month, but I am reasonably sure that I am not so my cycle coming early just doesn't make since to me. Someone please try to help me understand what is going on. I know why my cycle changed 4 yrs ago and began coming late. Before that it was always on time, you could set the calender by it. But I don't understand why it would change now. i am not under any unusual amount of stress or even more stress than I normally am, not overly worrying or working and othing has changed in my diet except that the last week i've been sick, which is odd in itself as i never get sick in the summer, only the winter with a sinus infection and runny nose and beginnings of broncitis, which is what i am expereincing now. Can someone please explain this to me? About the period being so early I mean.
Are you exercising more? You also said that you are trying to get pregnant. That can affect your cycle too (just thinking about it a lot). There are too many things that can triigger an irregular period, even if your periods have been like clockwork. It can also signify a problem. It's always good to consult with your ob/gyn or family doctor. Good luck!