could I be pregnant

So I had cramping about 7 or 8 days after my period ended and I still get them I’m supposed to start my period the 29th I’ve also have had sore breast for the past 2-3 weeks I’m not sure about exhaustion because I’m always tired I work 3rd shift and I come home get 2-3 hours of sleep then I babysit a 2 year old so I’m technically always exhausted.. could I be pregnant (Im also ttc)