maybe pregnant again!!

Stephanie • I'm married and blessed with a two rainbow boys! A baby on the way & 3 babies in heaven.
My period isn't suppose to start till the 1st.
But I'm just feeling off.
Off an on sore back
Off and on sore breast
Feeling hot
And not being able to get comfortable.
My 1st pregnancy my back was in so much pain. And nausea didn't really start till almost my 2nd trimester.
What were yalls sign of baby?