I came on my period 4 days early only bled for two days and spotting since also after sex possibility pregnant ?

Possible: If you are having unprotected intercourse and your period is abnormal, you could be pregnant. When in doubt, check a pregnancy test and, if it is negative, repeat it in 3-5 days. Hope this helps.

Possible: Sure, pregnancy is possible. It pregnancy is the cause of your symptoms, the a hoe pregnancy test should be positive. Also, as our reproductive system ages (it seems to age in dog years rather than human years), menstrual irregularities are common. The spotting after sex could indicate inflammation of your cervix. In any case, I recommend you get a check up by your gyno. Best wishes.