Can anyone relate!

So I am expected to get my period on the 14 or 15 of October I don’t usually have cramping before period but today I experienced a spasm in my abdomen that caught me off guard and made me a bit lightheaded, could this be an early sign of pregnancy? I am all out of dollar store test and the local store is out and before I spend the money or hunt down the closest store that has any in stock I was just wondering if any of you ladies have experienced something similar and have been pregnant!!! Loosing my mind