Could I be pregnant?

Hi all,

So I am currently arround 5 days late and am unsure whether or not I could be pregnant and if it’s worth taking a test. I do have a current partner however in the time we would’ve have conceived we were safe, although I was not on the pill. I went back on the pill over a week ago and started with the sugar pills which should most likely not have disrupted my due period. However the last 4 days I have felt super nauseous, even made myself lunch then smelt it and almost threw up 😂. I have also had more current and painful headaches as well as (tmi lmao) quite sore nipples for the past week. I am currently 18 so am a little scared to know the results, but just thought id see if anyone else had similar symptoms & were pregnant.

Thanks so much ☺️