Late Period - Advice Needed

Hi ladies. Just a quick question. Who has been late due to pregnancy but felt extremely emotional like you would just before or even during your period? I'm a few days late and I've been so emotional today almost like I usually feel the day before my period or the day after my period ended. Is this normal? I don't want to test just yet. We have been unlucky thus far and I don't want to get excited over nothing. It's only been two days late but I'm never late. my period is mostly always on key