What is Space Station 13? Space Station 13 is a paranoia-laden round-based roleplaying game set against the backdrop of a nonsensical, metal death trap masquerading as a space station, with charming spritework designed to represent the sci-fi setting and its dangerous undertones. Have fun, and survive!
When a woman is told she has an enlarged yolk sac during the first trimester, often she is told there is no hope and miscarriage is inevitable. The reason for this page is that indeed there is hope!
Report Abuse. As you've asked in pregnancy, I'm assuming you mean a woman's period. The womb lining thickens each month in readiness for a fertilised egg. If it gets one, the egg releases hormones to keep it in place as a secure place to fasten it whilst it develops and becomes an embryo.