Pregnancy symptoms

Ma

So I found out a couple days ago that I’m pregnant, and when I got my bfp the same day I started cramping in my back, belly and legs and my boobs ached all day. Plus, I have pelvic cramps and my stomach feels heavier. Well it’s been going on ever since, I’ve been having cravings, mood swings, fatigue, nausea, and headaches. Oh yeah and my mouth is sensitive to heat and my teeth are sensitive to anything cold. I’m about 6 weeks almost 7 my first ultrasound is the 15th and this is my first child. I know my uterus has to stretch for the baby, but I’m not sure if my symptoms are pregnancy symptoms or if it’s normal? Plus I have to pre every 45 mins! PLEASE comment NO NEGATIVE COMMENTS