After I had my son 21 moths ago my period it’s been so irregular to the point where I only had it twice last year and the last moth but before that one I had it back in November when my son turned one.... so I kinda left the pads out of my monthly budget and now since I’m on birth control I got it back to track and now i have my period again but no money or pads :( till Saturday ... idk what to do :(

Any advice ?