It depends the most on how long you go between having periods, if your periods are very close together (less than 25 days) you probably ovulate early in your cycle. If your periods are closer to 28 or more days, day 3 or 4 is likely too soon for you to need to worry about conceiving. (see information at link.)
Just before your period you are at your most fertile
when a person is having unprotected sex, the chances of becoming pregnant are 100%, no matter what the regulation of periods or ovulation dates are.
Did you have unprotected sex ? If you did you could be pregnant if you did not have unprotected sex then the chances of being pregnant are very slim, depending on the type of fooling around that went on.
When you are on/having your period, it is usually when you have one of the highest chances of getting pregnant.
if you are having unprotected sex, your chances of becoming pregnant are 100%, do not count on a 'safe time" or ovulation dates.
No, if you did not have sex than no chances of getting pregnant. But if you had sex than there might be chances, or it might be delayed period.
About a 5% chance.
You could be pregnant - take a test
There is ALWAYS a chance that you can get pregnant after engaging in intercourse ...
If you had unprotected sex it is possible you are pregnant, sperm can live for 5 days inside the upper cervix and uterus.
Chances are Good. In fact you may already be pregnant, which is why you aren't having a period.
No