I got my period 3 weeks ago. And its been already 5 days I feel cramps. Bloating, nausea and heaviness in breasts. Could I be pregnant?

Pregnancy symptoms. The short answer is "yes." Whenever there is concern about a possible pregnancy then it is best to do a pregnancy test even if you recently had your menses. Pre-menstrual symptoms and pregnancy symptoms are very similar and can be misleading.