Are Nausea, Sore Nipples, Hot Flashes And Fatigue Signs Of Pregnancy?

I stopped taking my contraceptive pill (levlen ED) on the 5th of February because I had missed a pill earlier that week which lead to breakthrough bleeding starting on the 5th of February, I decided to stay off the pill to let my body adjust its self. I've had unprotected sex with my partner multiple times since then (I'm only 22 and was only back on the pill for around 8 months after having a 1 year break off it last year) is there any chance I could be pregnant? The last week and a half I have felt neausea every single day I've had to make myself throw up twice because of how sick I felt, my body temperature has been very warm my skin always feels hot, I'm urinating a lot, my nipples are sore and I'm very tired a lot of the time. I don't know when my period should be due because this is my first month off it