What Does Pulling Feeling From Stomach During Periods Indicate?

hi doctor my name is samera im 27 years old am 5ft 2 and i have under active thyroids very high cholsetrol .ive had a few miscarriges ive been trying for a baby got 4 days before i start my period got pain on my left and also a pulling feeling frm the sides of my stomach could i be pregnant as i want to knw asap because i hav to go to hospital for my stich