A term pregnancy is between 37 and 42 weeks form the start of the last period, that is 35-40 weeks from conception. The earlier a baby is born before this the more dangerous it is. Most babies born after 28 weeks will be ok but before that it gets a more problematical.
The youngest baby EVER to survive was around 22 weeks and 6 days, but I don't know how healthy she is.
The other variable is the health of the mother and baby before the birth. My Daughter had twin boys at 25 weeks, They were 1 lb 9oz and 1 lb 5oz. They were in the nicu for 3 months. They are now 8 months old and weigh 16 and 14 pounds. Myself and my husband now have custody of them. They are devolopmentally behind but are on time for their actual due date, they have acid reflux and have to take medicine for it. Because of the NICU experience my daughter never bonded with them. I just wanted you to see the leaps and bounds that the medical field is making in helping babies to make it. BTW, these are really GOOD babies and they are our pride and joy.
our baby was born at thirty two weeks with gastroschisis that is the earliest that we know of
9 months earlier
The earliest recorded birth was 24w6d, and this baby is still alive and thriving! With medical advances these dates are earlier and earlier.
There's nothing set in stone. Normally after 37 weeks a baby is concidered full term but could still have some unexpected complications. Before 37 weeks doctors are generally prepared for a baby who is likely to have complications but often even a 35 week baby will be delivered without complications.
The earliest a guinea pig can mate is at the age of 6-8 weeks.
The earliest a baby has been known to survive is 22 weeks.
The earliest time that the physician could tell the gender of the baby is at least 12 weeks. At 12 weeks the genital tubercule must have started developing already.
no
It's safest to have it done after the baby is born. When you are pregnant, an amniocentesis has to be done and there is a possibility of miscarriage. It's not worth the risk, better to wait until the baby is born.
3 months
I think the earliest baby that ever survived was 21 weeks? But babies born early are very sick and do not survive a lot of the time. The earliest that is normal to have the baby is 37 weeks, which will be about 3 weeks before you due date. I had my last baby at 35 weeks and he was 6lbs 9oz and very healthy. It's dangerous to have it earlier than that because the lungs haven't developed enough for the baby to breathe on its own.
New born fish are called fry.