Yes it can. Four days is not very much.
stress can cause your period not to come on so my advice is to see a physician
Stress and hormonal imbalances can cause your period to come late.
It most likely will come. Periods don't have clocks attached and many things can cause a period to be late several days. If you have been sick or under stress this can cause a late period. It will happen.
Your period could have come late because you may have ovulated later. A menstrual cycle can be affected by stress alone.
Yes, it is possible to get your period after 20 days when you normally get then after 28 days. The cause of your period coming early could be related to stress, certain medications, hormonal changes or a health condition.
Stress among other factors can cause you period to come late. If you've had unprotected sex you could be pregnant.
If you mean start early as in--the first time you've ever had a period, not that I know of. If I'm not mistaken, early onset menstruation is hormone related. Could be genetics as well.If you mean start early as in--your period came at eg: 22 days instead of the usual 28 days, then yes. Stress can also make your period come late (like 32 days or so) or not have it that month at all.
Most likely the cause is then stress. Lots of women can be late for periods due to lots of stress in their daily lives.
You might be pregnant - take a test
why did my period come 4 days early?
Stress
I sometimes get really bad cramps two days before my period. It has happen to me a few times. Don't stress it should come. Give it a couple of days