Help please respond

Rebecca
21 days late negative pregnancy test and one faint positive 2 weeks ago. Bloods negative everything else is clear and I have a thyroid problem but is being controlled by medication that doesn't stop me from concieving 
​Symptoms I'm currently having
​Sore boobs
​Weird sensations in lower abdomen
​Dark areolas
​Fatigue
​Headaches 
​Constant lower back pain 
​