pregnant 🤰 ???

so last week i had diarrhea for a couple of days and on friday it stopped and i had really bad constipation. i looked it up online bc it’s seemed really odd to me to have constipation right after having diarrhea. so, everything that comes up online says early pregnancy signs. i finally had a bowel movement yesterday have i took some medicine but i have had a bowel movement all day today which is very unusual for me. i also woke up with a stopped up nose and i’ve also been really dizzy. i slept literally all day today until 9:00 at night and i woke up still tired. could i be pregnant?? opinions please ! 🧡