Help me I'm freaking out.

Ashleigh • 27, married, so is in the army (so am I). Working on my BSN and ttc.
So I'm 4 6/7 weeks and only symptoms I have are boobs are sore and feel bloated a little bit. I havnt had any bleeding, but I'm freaking out! Is it normal not to have many symptoms this early, or should I be concerned? I was super nauseated after ovulation and that has kind of gone away. I have an ultrasound on the 27th, but that is so far away!!