Am i preg?!?

So my period came on November 5 till 10 and the same in December but then it came on January 4 till 10 and again on 25 till 31. Now its February 27 and it hasn’t come yet. Btw i had sex with condom In January and February. My ovaries hurt these days and my lower back so damn much and i also have some pimples on my skin but not sore breasts yet. Ive also started gym. Im scared that im preg because no sign of period this month:/