My period didn't come this month! And negative home pregnancy tests

Jocelyn • married, Mother of 2🩷💙
My period has never been this late. I was supposed to get it on the 9th and only thing i had was brown spotting for a couple hours on the 6th. I tested a couple weeks after and they came negative. I have been nauseous and thrown up. I noticed changes in my body such as my boobs and even nipples been sore and itchy. My fiancé has noticed they have gotten bigger and my bras don't fit no more there are veins around them. I been sleeping more and my appetite has changed to from being hungry all the time to sometimes not wanting to eat. My low back hurts sometimes too and leg and feet. But still no period cramps like i usually do. Im so confused that sometimes i just want to cry! This has never happened to me before. I will make an appointment this coming month. But any suggestions?