Help ASAP!

I’m two days late on my period... but I don’t feel sore breasts.. but I feel like my pelvis area is full and lightly crampy... but like soft soft cramps. I’ve been gassy! Constipated and indigestion.. with horrible heartburn, head ache, sleepiness and so forth.. I took like three tests but keep getting confused wether it’s the evaporation line or positive line. Some people keep telling me that it’s likely I’m pregnant and Idk.. I’m not feeling the main symptom and that’s sore breasts after two days of missed period. Someone help!

UPDATE! I started to spot.. yellow pink. It’s not a flow but not my normal period... this is too thin to be my period and no pain at all... just full pelvis feeling.