Has anyone else experienced this?

I had my son while me and my bf were broke up (he dumped me a month before he was due) 8 weeks after I gave birth I had a one night stand :/ Don't judge, he thought he came in me but wasn't sure and I was not on bc so I took Plan B. I bled after I took and 8 weeks later, still no period. I did NOT want another child. I took a pregnancy test and it was faulty. I took at least 20 more cause I was so worried... I got scared cause I went back and looked at one and it had the evap line. I started feeling movements in my belly. Which I later found out were "phantom kicks" I was making myself believe I was pregnant. I even took a fetal doppler and swore I heard a heartbeat. By now I would be 8 months pregnant so I know I'm pregnant. Has anyone ever made themselves believe they were pregnant like this?