Can you have pregnancy symptoms for abotu two weeks have a later then usual heavy period and continues having symptoms and be pregnant?

my mother has normal periods with all five of us kids. but if you are worried see your docter. Every one is different, honestlt the same woman never has the same pregnancy twice. You could be pregnant in your mind as well.....you have to google the basic schedule and adjust your pregnancy montioring to it ...take test at proper times and such...then wait a little while longer then suppost to and take another one to confirm..if still feeling pregnant go to the doctor for final accurate results.