Early pregnancy?

Sarah • Mom of 1, pregnant with #2 ❤️🥰

I’ve been experiencing lower back pains, lower abdomen pains as well with pelvic pains around my area and on the sides. I’ve also been so flipping nauseous after eating. My period is never like this. I’ve experienced this for two days.... I did have unprotected sex. I’ve been so tired too. Help? Lol