Side Effects W/stopping birth control

Hello, so I have a weird thing going on that im not sure about, but here is the story. Ive been on estrogenol (i thunk thats what its called) birth control for about a year now. And because i recently turned 19, my insurance cut me off and i could get my birth control.

About 3-4 weeks ago my boyfriend and i had sex with out a condom for up until my period which was last thursday. I had finished my set of pills on tuesday and have been feeling like throwing up when eating. I also recently just started a second period yesterday even though i had one last week.

Im confused and i dont know what to do until my planned parenthood appointment on monday for another set of pills.