Kinda Need Help

I recently had sex about a good month ago an my period is right around the corner. But I know something is wrong. My sense of smell is out of this world I can literally smell dog poopoo from like a mile away, I’m eating stranger things than I use to, I’m getting overly emotional over pickles🤦🏽‍♀️ && let’s not get started on my breast when I say heavy honey... it feels like I’m carrying 4 jugs of milk in which makes my back hurt so bad I need to sit down.... Now gathering this info together. Could I maybe possibly be pregnant🥺 ??? I’m scared to take a test but it’s been a month already & im patiently waiting for my period but something is telling me I’m not going to get an I’m wasting my time !!! Any suggestions