Feels like period cramps

Natallia • 24 yrs married 14/1/17, been waiting 2 years and finally have our little boy 💙🥰

I’m 38 weeks today and I keep getting what feels like period cramps in my pelvic area! Could this be contractions? (Sorry first pregnancy 🤷🏻‍♀️) my sister told me that contractions are across the whole of your stomach but these are only further down and normally to one side!