“after about 24 weeks of pregnancy, your tiny human will likely have an established movement pattern... if they have a reduction of movement away from their usual pattern, then that could be a sign that baby isn't doing so well. So if you notice this, you do not wait to count the number of kicks or jiggles. You do not buy an at home…”

The cited PMID is real and is on topic. PMID 33424454 is Bekiou and Gourounti, "Reduced Fetal Movements and Perinatal Mortality," published in Materia Socio-Medica in 2020. It is a review of studies examining the association between reduced fetal movements and perinatal and neonatal outcome. RCOG guidance supports the central instruction. The Green-top Guideline No. 57 states that pregnant women are recommended to attend obstetric care immediately once they perceive reduced fetal movements (RFM) or absent fetal movements. On formal counting, RCOG states that there is insufficient evidence to recommend formal fetal movement counting using specified numbers, and that there is insufficient evidence from randomised and non-randomised studies to demonstrate that formal fetal movement counting has a favourable effect on perinatal mortality. A 2024 NHS clinical guideline is more explicit: healthcare professionals historically used formal counting methods such as kick charts, but this is not now recommended, and instead it is advised to be guided by the individual mother's perception of what constitutes reduced movements. NHS patient-facing guidance matches the "do not wait" instruction. Around half of women who had babies that were stillborn noticed that their baby's movements had slowed down or stopped first, which is why it is important to call a midwife or hospital straight away if any change is noticed. Another NHS trust states that if a baby is moving less than usual or movement can no longer be felt, do not wait until the next day, and call the Pregnancy Assessment Unit or community midwife straight away. NHS Scotland notes that a reduction in a baby's movements can be a warning sign that the baby is unwell. On home Dopplers, the Stillbirth Centre of Research Excellence strongly advises against the use of hand-held fetal heart monitoring devices at home, because these devices may provide false reassurance that the baby is well and lead to a life-threatening delay in seeking appropriate care from maternity health care professionals. A 2026 peer-reviewed qualitative study found that at-home fetal Dopplers are widely sold for use outside medical supervision despite safety concerns about false reassurance leading to delayed care-seeking, and healthcare practitioners worried about false reassurance and misinterpretation. On the gestational threshold, RCOG states that perceived fetal movement begins between 16 and 24 weeks of gestation and usually acquires a regular pattern by 28 to 32 weeks. One NHS trust states that by 24 weeks these movements should have developed a regular pattern and the number of movements tends to escalate until approximately 32 weeks. On the implied benefit, the largest trial to date found the opposite of what the post implies. The AFFIRM trial tested whether a reduced fetal movement care package that increased women's awareness of the need for prompt reporting of RFM, with standardised management including timely delivery, would alter the incidence of stillbirth, and the RFM care package did not reduce stillbirth. Independent description of the trial notes it involved more than 400,000 pregnancies, implemented a structured care package that improved the timeliness and consistency of assessment but did not reduce stillbirth rates and was associated with higher induction and caesarean rates, raising concerns about potential overtreatment.