Just wondering!

Natalia
My AF is suppose to come today but no sign of her! For the last two weeks I have had no symptoms when I usually have them by then. My cramps are horrible before getting AF like almost crying horrible! This time I got nausea boobs hurt everywhere, severe constipation, and cramps come and go but they arrived today when AF is due. I feel really wet but my panties only got a few white-ish stains (sorry for the TMI). I only had sex weeks ago and we were drunk with no contraceptives. But I'm still hoping my period comes and I will be okay! However I'm a little frustrated because I have zero money for pregnancy test and my appointment is not until Tuesday :( 
Do you think there is a chance I could be pregnant or is it just a weird cycle?