I'm not quite sure. Actually... I was looking for a similar question... But from what I've experienced with mine, you bleed. That seems to be the popular answer. Except... I saw... my miscarriaged baby. So I guess if you've seen it... you basically had one.
Embryo
Nothing shows at 3 weeks.
they look like baby roosters
The first organ to develop in the embryo is the heart. It starts to form and beat as early as 3 weeks after conception.
For a domestic hen the time is 3 weeks
My doc recommends at least 6 weeks and 3 days and even so it's early...Would try at 7-8 weeks
A fetus is generally not visible on ultrasound until about 5-6 weeks of pregnancy. At 3 weeks, the embryo is very small and not typically detectable on ultrasound.
At 3 weeks it's a embryo, at 10 weeks it's a fetus and from week 38 or when it's born it's called a baby.Terminating your pregnancy is called an abortion.
If you ovulate around day 14 and have regular periods, by LMP (last menstrual period) you would be 5 weeks - the actual age of the embryo would be 3 weeks.
Of course not. You are not ovulating, no sperm can enter the uterus and there's already a embryo inside.
You wouldn't normally see a sac on ultrasound until about 5 weeks. Sounds normal.
Within two weeks of fertilization, the fertilized egg undergoes multiple cell divisions to form a blastocyst, which implants into the uterine lining. The blastocyst then begins to differentiate into the embryo and placenta, and the embryo's initial structures begin to form, such as the neural tube and primitive heart.