Expected date of delivery/estimated due date (EDD) is a calculated date (i.e., an estimation), determined by counting forward 280 days (40 weeks) from the first day of the woman’s last menstrual period.

This patient presents with signs and symptoms similar to clinical features of placental abruption.

Any trauma during the last trimester of pregnancy could be dangerous to both mother and fetus. By force of deceleration, motor vehicle accidents can result in placental separation. Also when subjected to strong acceleration-deceleration forces such as those during a motor vehicle crash uterus is thought to slightly change its shape. Since the placenta is not elastic and amniotic fluid is not compressible, such uterine distortion caused due to acceleration-deceleration or direct trauma will result in abruptio placentae due to shear stress at the utero-placental interface.

A painful, tender uterus which is often contracting is characteristic of placental abruption and the condition will lead to maternal hypovolemic hypotension and consequent fetal distress which is presented as fetal bradycardia and repetitive late decelerations. Vaginal bleeding, abdominal pain, contractions, uterine rigidity with tenderness, and a nonreassuring fetal heart rate (FHR) tracing are the clinical features diagnostic of abruption. However, a significant abruption can occasionally be asymptomatic or associated with minimal maternal symptoms in the absence of vaginal bleeding. Therefore the amount of vaginal bleeding is not always an appropriate indicator to the severity of placental abruption, this is because, in cases bleeding could be very severe or it may be concealed in the form of a hematoma in between the uterine wall and the placenta.

Sharp or blunt abdominal trauma can lead to uterine rupture or penetrating injury, since there is no reported abdominal trauma to the patient, uterine rupture is less likely to happen in this case. Severe abdominal pain with tenderness, cessation of contractions and loss of uterine tone are the most common symptoms characteristic of Uterine rupture. It will also be associated with mild to moderate vaginal bleeding along with fetal bradycardia or loss of heart sound. In this case uterus will be less tense and tender in comparison to placental abruption

Symptoms like low blood pressure, tachycardia and fetal bradycardia can be justified by ruptured spleen and liver laceration, but not the tense, tender and contracting uterus.

The diagnosis of placenta previa cannot be considered with the given clinical picture as it presents with sudden, painless bleeding of bright red blood and there will not be any uterine tenderness.

The uterine and vaginal arteries branch from the internal iliac artery. The ovarian artery branches direct from the aorta.

Bicornuate uterus is associated with an increased chance of urinary tract anomalies. Urinary tract anomalies were present in about 23.6% of cases of bicornuate uterus patients.

An ovarian cyst is a sac filled with liquid or semiliquid material that arises in an ovary. Although the discovery of an ovarian cyst causes considerable anxiety in women owing to fears of malignancy, the vast majority of these lesions are benign.

Many patients with simple ovarian cysts based on ultrasonographic findings do not require treatment.
In a postmenopausal patient, a persistent simple cyst smaller than 10cm in dimension in the presence of a normal CA125 value may be monitored with serial ultrasonographic examinations.

However, meta-analyses have since shown that there is no difference between OCP use and placebo in terms of treatment outcomes in ovarian cysts and that these masses should be monitored expectantly for several menstrual cycles.

If a cystic mass does not resolve after this timeframe, it is unlikely to be a functional cyst, and further workup may be indicated.

Other methods of management maybe revisited if cyst increases in size or becomes complex upon follow up.

The ischial spines and palpable through the vagina and are used as landmarks to assess the decent of the fetal head from the cervix. It also serves as a landmark for giving the pudendal block.

This patient has experienced polycystic ovarian syndrome-like symptoms.
At least two out of three of the following criteria must be met to diagnose polycystic ovarian syndrome:
1- Hyperandrogenism suggesting an excess of androgens e.g. excess hair growth, acne etc.
2- Menstrual irregularities e.g. dysmenorrhea, oligomenorrhea, and amenorrhea.
3-The ovaries are polycystic if one ovary has 12 or more follicles or if the size of one or both ovaries has risen.

Low FSH, LH, and pituitary hormones are typically associated with hypothalamic dysfunction, however this is not the case here.
Similarly, with premature ovarian failure, FSH/LH levels rise while oestrogen levels decrease.

All of the other choices are incorrect.

Up to 20% of women have been found to have Group B streptococcus (GBS). GBS is considered a normal flora of the gastrointestinal tract. GBS infection is generally asymptomatic although some women might end up having a UTI. Infants born to mothers who are colonised with GBS during labour are at a higher risk of developing early-onset GBS infection. If a pregnant woman develops a UTI due to GBS, it is suggestive of significant GBS colonisation. IV penicillin would be the drug of choice and is to be administered to the mother during labour which would provide sufficient protection for the foetus and would be effective enough. If penicillin is unavailable, ampicillin is a reasonable alternative. If a patient has penicillin allergy, vancomycin can be used. If not for penicillin, roughly 50% of babies delivered vaginally to women who are GBS positive would be colonised with the organism and out of this percentage, 1-2% can go on to develop a severe infection such as septicaemia and meningitis which could often be fatal.

IM penicillin can be administered to the newborn immediately post-delivery would be an effective prophylaxis in most cases but one should not wait until signs of infection are present to give the injection. Many newborns would still have an immature immune system which could cause some to die. Hence, it is more suitable to treat all women who tested positive during labour and the newborn as well if any signs of infection do appear. The majority of babies don’t need antibiotic treatment if their mother has been treated.

The uterus needs support in order to remain centered inside the pelvic cavity. The support it receives comes in two forms: dynamic and passive. The ligaments of the uterus have an important role in both.

Dynamic support is provided by the pelvic diaphragm through tonic contractions while standing and sitting and active contractions during moments of increased abdominal pressure, such as coughing or sneezing. During these moments, the ligaments of the uterus transmit the force of the diaphragm towards the organ itself, maintaining its position.

The ligaments are also crucial in providing passive support. By minimizing movement of the body and the cervix, they maintain the uterus in the typical anteverted and anteflexed position directly on top of the bladder. This provides a support for the uterus when the abdominal pressure increases.

Hence, even though the broad ligament, round ligament and ovarian ligament have some role in the suspension of the uterus, the uterosacral ligament plays the most significant role. It is also the ligament used for surgical suspension of POP.

When testing for ovulation the best test is to check the progesterone level. The mid luteal progesterone levels should be checked 7 days prior to the next period. That will be the 28th day in a 35 day cycle.