Vomiting 7days before period!

Nenee • Im 25 bless with three kids and one angel. We are trying for our last baby please wish us luck and good luck to all of you!!
So for the passed two days its been hard to hold anything down. At first i thought stomach flu, but nofever and its not every meal just the first meal... could this be a sign of pregnancy? Or something else? I dont want to get my hopes up and its still to early to test..