Loss of Symptoms

I got my first positive on Friday 1/24 at 11DPO since then my lines have gotten darker. My period was due yesterday and I had a strong positive on a FR test and on ClearBlue digital at 15DPO.

For the past week I’ve had very sore boobs, lower back aches on and off and fatigue. But today my boobs are barely tender and I have zero aches or pains.

Is this normal for symptoms to come and go or should I be concerned something might be wrong?