This is mine need advice

rainlover • Off birth control since 5/2016 been actively trying since 9/2017 22 years old now.

This is mine and also I tested for pregnancy before I started this very light flow/ basically spotting and they all said negative and also been having a ton of cramping and flank pain which is making me think I have a kidney at the moment as well and some nausea which I have puked once with it but I just need some help/ advice I get paid tomorrow so I’ll pry go to the walk in clinic or something