IM CRYING I NEED HELP

Hi I’m 21 years old and this story is gonna throw you guys through a loop. I’m making such bad decisions I know. I need to get on birth control asap. However here’s my situation. I had sex on august 16 and took a plan b (last day of my period) I then spotted for 6 days until about the 23 of august. I took a pregnancy test yesterday august 28 it was negative. I then had sex last night at about midnight and when I got up I was pouring out water like consistency. I took a plan b. I don’t know if I was ovulating or not and I probably was bc that’s what the app says but it doesn’t account for the plan bs I have taken. I took an ovulation test this morning and it was negative… I’m so lost and I need support I DO NOT WANT to be pregnant. I’m so mad at myself for putting myself in these situations