Can your body fake a pregnancy?

This seems like a really dumb question but I heard that some girls experience fake pregnancies where their body releases hormones thinking it’s pregnant. I’m a virgin so I know I’m not pregnant but my uterus region is growing and getting firm and round like a pregnancy belly and I’m starting to get that brown line on my belly that pregnant women get. I’m like two months or so late on my period. I also have sore nipples and feel nauseous sometimes. I’ve never even been near a boy so I know I’m not pregnant? I don’t even want to buy a pregnancy test because it’s so stupid. I just want these pregnancy-like symptoms to stop because I used to always have a flat stomach and now I’m bloating so much and experiencing shit symptoms. Its so real sometimes I’m like “am I the next Virgin Mary???”. Also experiencing these symptoms makes never want to get pregnant LOL. Here’s the line in the picture below. Does anyone know how to stop these symptoms?