Hello ladies, could you please tell me if anyone has experienced somet…

Hello ladies, could you please tell me if anyone has experienced something like this? A week ago I had strong pains in my lower abdomen on the left side. After that, three days before my period started, my breasts began to increase and ache, the nipples became very sensitive (I never felt this before), fatigue, drowsiness, dizziness, I often have to go to the bathroom, I eat a lot, I constantly feel like eating something (salty or sour), today I've been having two days of missed periods, I took a test, the second one is barely visible (not a ghost). What could it be?