Pregnancies question..

Ok so,, my mother had her period the whole time she was pregnant with my brother and I ,this is extremely rare but it can happen, so my question is I had me period a few weeks ago but now I’m cramping ,my tummy hurts, boobs are sore, having vivid dreams, constipation, puffy gums , and a metallic tastein my mouth and a couple other things should I take a test? Do you think I could be pregnant? Idk I’m confused and I’m unsure