Menstrual period cycle varies from one woman to the other. Even for the same woman period between one cycle and the next may not be the same all the time. Normal menstrual cycle ranges anywhere from 28-35 days and it occurs roughly two weeks after ovulation. Every healthy woman would have 11-13 times of menstrual periods each year.
Monthly period of vaginal discharge may lasts from 2-5 days under normal health condition. Having vaginal discharge for two days is not a matter of concern. But if you are on reproductive phase and trying to become pregnant this 2 day period may worry you.
Remember you cannot be pregnant once you have vaginal bleeding. Once the egg gets fertilized it gets implanted on the walls of the uterus. This process can cause some bleeding for one or two days. In case you have had unprotected sex recently and if you have spotting of brown color it is time for you to visit your doctor.
Getting 2 days period can be a sign of pregnancy but one cannot say for sure. Vaginal spotting stops suddenly after 2 days if the egg gets fertilized. But there are other signs like feeling of tiredness, hormonal changes causing excitement or depressive feeling and frequent urination.