HELP !

I am about to 18 on Wednesday & I'm trying to turn up... but before that happens... I need to take a pregnancy test.. I've been having a few symptoms and my period is late.. but the only issue is I am on a very strict budget right now bc Ive been helping my family members out with bills and their money issues so I don't have money to go to the doctor.. HECK , I won't even have money to buy a home pregnancy test until after the weekend of my birthday... any suggestions ?