Wonder if this has happened to you? I don't want to freak you out, but this doesn't sound at all serious in the scheme of things, but does sound painful:
" In a small percentage of cases, the growing uterus is ‘snagged’ on pelvic bone (usually the sacrum). This condition is known as ‘incarcerated uterus’. The symptoms usually occur somewhere between weeks 12 and 14, and can include pain and difficulties passing urine."
Making a March 9th sandwich with a Halloween filling.