During pregnancy, the breast is responsive to a complex interplay of hormones that cause tissue development and enlargement in order to produce milk.

During pregnancy, the cervix is blocked by a special antibacterial mucosal plug, which prevents infection, somewhat similar to its state during the infertile portion of the menstrual cycle.

During pregnancy, the glands and blood vessels in the endometrium further increase in size and number.

During pregnancy in viviparous mammals, endogenous retroviruses ( ERVs ) are activated and produced in high quantities during the implantation of the embryo.

During the early days of pregnancy, the conceptus is mobile, moving about in the uterus until about day 16 when " fixation " occurs.

During menopause, estrone is the predominant circulating estrogen and during pregnancy estriol is the predominant circulating estrogen in terms of serum levels.

During season seven, a pregnancy storyline was written in for the B ' Elanna character.

During pregnancy, all women produce vasopressinase in the placenta, which breaks down ADH.

During the 1980s, the show incorporated the real-life experiences of the show's cast and crew, including the death of Will Lee ( Mr. Hooper ) and the pregnancy of Sonia Manzano ( Maria ) to address affective concerns.

During pregnancy, testing can be performed on the placenta ( chorionic villus sampling ) or the fluid around the fetus ( amniocentesis ).

During the pregnancy ( usually later in it ), the woman may have glucose ( sugar ) in her blood at a higher than normal level.

* During pregnancy women experience CTS due to hormonal changes ( high progesterone levels ) and water retention ( which swells the synovium ), which are common during pregnancy.

During pregnancy, diabetic retinopathy may also be a problem for women with diabetes.

During her pregnancy with her last child, Marijke Christina, Princess Juliana contracted German measles.

During pregnancy, Bajoran women suffer from uncontrollable bouts of sneezing rather than morning sickness.

During check-ups, women will receive medical information over maternal physiological changes in pregnancy, biological changes, and prenatal nutrition including prenatal vitamins.

During the epidemic in the US between 1962 – 1965, Rubella virus infections during pregnancy were estimated to have caused 30, 000 still births and 20, 000 children to be born impaired or disabled as a result of CRS.

During a hyperemetic pregnancy, many woman complain of excessive saliva and an inability to swallow this saliva.

* During pregnancy

During pregnancy, high circulating concentrations of estrogen increase prolactin levels by 10-to 20-fold.

World Health Organization recommendation on Maternal Supplementation During Pregnancy states that " health benefits are expected for the mother and her developing fetus with little risk of detriment to either, from a daily supplement not exceeding 10, 000IU vitamin A ( 3000mcg RE ) at any time during pregnancy.

During menopause, estrone is the predominant circulating estrogen and during pregnancy estriol is the predominant circulating estrogen in terms of serum levels.

During pregnancy, the uterus presses the navel of the pregnant woman outward, however it usually retracts after birth.

During Alexius II's reign, the Byzantine Empire was invaded by King Bela III losing Syrmia and Bosnia to the Kingdom of Hungary in AD 1181, later even Dalmatia was lost to the Venetians.

During the depression years, rhinestones were even down-graded by some manufacturers to meet the cost of production.

During the 19th century, carbines were often developed separately from the infantry rifles, and in many cases did not even use the same ammunition, which made for supply difficulties.

During the late Neolithic henge sites were constructed, single burials began to become more commonplace and by the Bronze Age it is possible that even where chambered cairns were still being built they had become the burial places of prominent individuals rather than of communities as a whole.

During this race, Earnhardt was briefly forced into the infield grass, but kept control of his car and returned to the track without giving up his lead — a maneuver now referred to as the " Pass in the Grass " even though Earnhardt actually didn't pass and couldn't have passed anyone for position as he was in the lead at the time.

During World War I the dachshunds ' popularity in the United States plummeted because of this association and there are even anecdotes such as a Dachshund being stoned to death on the high street of Berkhamsted, England at this time because of its association with the enemy.

During the Jewish-Roman wars, he was likely taken under the care of his uncle Titus Flavius Sabinus II, at the time serving as city prefect of Rome ; or possibly even Marcus Cocceius Nerva, a loyal friend of the Flavians and the future successor to Domitian.

During the next about 150 years nobody paid much attention to actually abide fully to the proportions of the flag given in the 1748 regulation, not even the government.

During Paschaltide, in some traditions the Pascal greeting with the Easter egg is even extended to the deceased.

During the age when the whole point of money was that it was made of precious metal, there was frequent trimming or shaving of coins once they were released to the public, even though people were expected to accept the diminished coins at their face value.

During the past five hundred years, however, probably due to Confucian influence, inheritance by sons — but not always, or even most often, the eldest son — has been the norm.

During the discussion it becomes clear how different this process is from regular legal proceedings – guilt is assumed, the bureaucracy running it is vast with many levels, and everything is secret, from the charge, to the rules of the court, to the authority behind the courts – even the identity of the judges at the higher levels.

During a period of hyperinflation, bank runs, loans for 24-hour periods, switching to alternate currencies, the return to use of gold or silver or even barter become common.

During periods of particularly high demand for ammunition, such as after the November 2008 election of President Barack Obama, or after the 1994 Assault Weapons Ban in that country, factory ammunition can become considerably more expensive or even unavailable in stores.

During the regime of Saddam Hussein, the leader of the Ba ' ath Party had strong relations with Bachir, and Amine Gemayel ; relations grew even stronger when Iraqi officials verbally lashed out against Israel's actions in the 2006 War.

During the whole of the Industrial Revolution and for the century before, all European countries and America engaged in study-touring ; some nations, like Sweden and France, even trained civil servants or technicians to undertake it as a matter of state policy.

During this period, Japan developed thriving cities and castle towns and increasing commodification of agriculture and domestic trade, wage labor, increasing literacy and concomitant print culture, laying the groundwork for modernization, even as the shogunate itself grew weak.

* During a geomagnetic storm the F < sub > 2 </ sub > layer will become unstable, fragment, and may even disappear completely.

In its relatively brief history the impi inspired anger, scorn ( During the Anglo-Zulu War, British commander Lord Chelmsford complained that they did not ' fight fair '), and even a grudging admiration by its opponents, epitomized in Kipling's poem " Fuzzy Wuzzy ":

During Baldwin I's reign the kingdom expanded even further.

During this time he grew in fame even in the public consciousness, becoming one of the best-known scientists in the world.

During surveys carried out between 1997 and 2001, a spot was found along the Mariana Trench that had depth similar to that of the Challenger Deep, possibly even deeper.

During Reconstruction the Methodists took the lead in helping form Methodist churches for Freedmen, and moving into Southern cities even to the point of taking control, with Army help, of buildings that had belonged to the southern branch of the church.

During the last years of his life he even ruled without a king, though he did not assume royal dignity.

During the Italian unification, the number of people speaking the Italian language was even lower.