Cryptic Pregnancy
http://www.nbcnews.com/health/body-odd/congratulations-stomach-cramp-full-term-baby-f1C9926250
http://www.momjunction.com/articles/cryptic-pregnancy_00395384/#gref
https://www.ncbi.nlm.nih.gov/pubmed/16997498
http://www.thetalko.com/14-women-who-didnt-know-they-were-pregnant-until-they-gave-birth/
http://m.huffpost.com/ca/entry/7277840#
http://www.crypticpregnancysupportgroup.com/
http://www.motherhooddiaries.com/ghost-pregnancy-negative-pregnancy-test-birthing-real-baby-boy/
http://ispub.com/IJGO/6/2/10533
​
​
http://www.sugardaily.ng/2016/04/shocking-photos-woman-pregnant-for-3.html?m=1
​
http://www.reshareworthy.com/mom-with-ms-pregnancy-surprise/
​
​
http://www.huffingtonpost.ca/2016/09/08/cryptic-pregnancy_n_11910296.html
​
​
​
​
http://www.newser.com/story/202103/mom-learns-shes-pregnant-giving-birth-to-4th-child.html
​
http://baltimorewatchdog.com/2016/10/01/learning-youre-pregnant-just-hours-before-giving-birth/
​
​
​
​
http://www.womensweekly.co.nz/latest/real-life/no-one-knew-i-was-pregnant-12441
Superfetation
http://www.dailymail.co.uk/health/article-1217740/How-I-got-pregnant--I-ALREADY-pregnant.html
http://content.time.com/time/health/article/0,8599,1926414,00.html
https://blogs.scientificamerican.com/guest-blog/superfetation-pregnant-while-already-pregnant/
Understanding HCG and HCG Variants
http://www.pregnancylab.net/hcg-variants/
http://www.medscape.com/viewarticle/778183_3 (The Journal of Emergency Medicine, "Hook-Like Effect" Causes False-negative Point-of-Care Urine Pregnancy Testing in Emergency Patients)
http://www.exeterlaboratory.com/test/hcg-human-chorionic-gonadotrophin/
http://scrippslabs.com/technical-brief-hcg-beta-core-fragment/
http://m.humrep.oxfordjournals.org/content/20/4/928.long
Birth Rate 2015
http://www.cdc.gov/nchs/products/databriefs/db258.htm
https://en.m.wikipedia.org/wiki/Birth_rate
​
Protracted Gestation, and Diapause
http://www.medhealthdaily.com/longest-human-pregnancy/
https://books.google.com/books?id=bf9XAAAAMAAJ&pg=PA803&lpg=PA803&dq=cause+for+fetal+slow+growth+extended+gestation&source=bl&ots=S_BKhklnKi&sig=UP2qXvygh-IH5gVFfzmHvtF-9ro&hl=en&sa=X&ved=0ahUKEwic7eGa0JXQAhVqjFQKHffyBuc4ChDoAQgaMAE#v=onepage&q&f=false (The American Journal of Obstetrics and Diseases of Women and Children, Volume 28, pg. 794-803)
https://books.google.com/books?id=g2unelYeAe0C&pg=PA373&lpg=PA373&dq=protracted+gestation&source=bl&ots=cNDVCqBmjv&sig=iIcGnbOWGXVesbHlRRcbRcGrD6c&hl=en&sa=X&ved=0ahUKEwjqzP2k1pXQAhWrhVQKHZDOBqU4ChDoAQgJMAA#v=onepage&q=protracted%20gestation&f=false (London Medical Gazette, Volume 5, pg.369-377)
https://books.google.com/books?id=NmUBAAAAYAAJ&pg=PA387&lpg=PA387&dq=protracted+gestation&source=bl&ots=h56WbKb84Y&sig=ggg9HLmmE5oqcDbjv6_xkPCrdJ8&hl=en&sa=X&ved=0ahUKEwjqzP2k1pXQAhWrhVQKHZDOBqU4ChDoAQgLMAE#v=onepage&q&f=false (Dublin Quarterly Journal of Medical Science, Volume 42, pg. 377-392)
​
http://www.nature.com/news/mammals-put-embryo-development-on-hold-1.10228
​
https://rbej.biomedcentral.com/articles/10.1186/1477-7827-11-92
Ways to Detect Pregnancy
http://www.homeremedyhacks.com/15-homemade-pregnancy-tests-to-detect-pregnancy/
http://www.babybeat.com/doppler-sounds.html
https://www.natera.com/panorama-test
​
​
http://www.harmonytestusa.com/expecting-parents/
​
http://www.unbornheart.com/faq.html
Pseudocyesis, Delusion of Pregnancy, Ovarian Cancer, Fibroids, and Cushing's Syndrome
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3361851/
http://obgyn.ucla.edu/fibroids
http://www.littlethings.com/pregnant-with-tumor/
http://www.marieclaire.com/health-fitness/news/a535/ovarian-cancer/
http://shrinkfibroidsfast.com/
https://en.wikipedia.org/wiki/Ovarian_cancer
​
https://m.huggies.com.au/conception/am-i-pregnant/phantom-pregnancy
​
http://www.healthline.com/health/cushing-syndrome#Overview1
​
http://www.medicinenet.com/script/main/mobileart.asp?articlekey=7738&page=7
​
http://www.webmd.com/baby/guide/false-pregnancy-pseudocyesis#1
Pregnancy hormones, HCG, Progesterone, PCOS
http://contemporaryobgyn.modernmedicine.com/contemporary-obgyn/news/hormone-levels-and-pcos
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3659905/#!po=0.393701
https://www.verywell.com/interpreting-hcg-levels-in-early-pregnancy-2371290
http://www.babymed.com/hcg-human-chorionic-gonadotropin-pregnancy
Fetal Growth
http://press.endocrine.org/doi/full/10.1210/jc.2010-0517
http://www.summitmedicalgroup.com/library/adult_health/obg_intrauterine_growth_retardation/
​
Retroverted Uterus, Placenta, and Anterior Placenta
http://www.whattoexpect.com/pregnancy/tilted-uterus
http://www.motherrisingbirth.com/2012/08/anterior-placenta.html
​
http://wellbellyhealing.com/10-signs-tipped-uterus/
​
​
http://alignmentmonkey.nurturance.net/2012/retroverted-uterus/
​
http://emedicine.medscape.com/article/272497-overview#a1
​
http://fnbeta.bmj.com/content/77/3/F171.full
​
Incarcerated Uterus and Sacculation
http://www.uptodate.com/contents/incarcerated-gravid-uterus
​
http://www.fetalsono.com/teachfiles/incarcut.lasso
​
Ultrasound
http://blog.sfgate.com/sfmoms/2014/06/16/doctors-set-to-remove-womans-ovaries-find-surprise/
http://qz.com/511101/study-viable-pregnancies-may-be-getting-misdiagnosed-as-miscarriages/
​
https://www.ncbi.nlm.nih.gov/pubmed/11005122
​
http://www.wikiradiography.net/m/page/Basic+Ultrasound+Physics
Prodromal Labor, Labor "Trigger"
http://wellnessmama.com/77940/surviving-prodromal-labor/
​
http://www.midwivesonline.com/parents/parents1//////?ttl=faqans&faq=284
​
http://www.drmomma.org/2008/01/fetal-lungs-protein-release-triggers.html?m=1
​