AR	Androgen Receptor
cAMP	Cyclic Adenosine 3′, 5′-monophosphate
CP	Clinical Pregnancy
Cx	Connexin
DDD	Dichlorodiphenyldichloroethane
DDE	Dichlorodiphenyldichloroethylene
DDT	Dichlorodiphenyltrichloroethane
E2	Estradiol
EDC	Endocrine-disrupting Chemicals
EPL	Early Pregnancy Loss
ER	Estrogen Receptor
Erβ	Estrogen Receptor Beta
FSH	Follicle Stimulating Hormone
hCG	Human chorionic gonadotropin
hCG/LHR	Human chorionic gonadotropin/Luteinizing Hormone Receptor
LRAT	Long-Range Atmospheric Transport
LEH	Luminal Epithelial Height
LH	Luteinizing Hormone
LIF	Leukemia Inhibitor Factor
NP-I	Neurophysin-1
ο,p′-DDD	ortho, para′-Dichlorodiphenyldichloroethane
ο,p′-DDE	ortho, para′-Dichlorodiphenyldichloroethylene
ο,p′-DDT	ortho, para′-Dichlorodiphenyltrichloroethane
OCP	Organochlorine Pesticide
OCP	Organochlorine Pesticide
OT	Oxytocin
p,p′-DDE	para, para′-Dichlorodiphenyldichloroethylene
p,p′-DDT	para, para′-Dichlorodiphenyltrichloroethane
p,p′-DDD	para, para′-Dichlorodiphenyldichloroethane
P4	Progesterone
PGA	Prostaglandin A
PGE2	Prostaglandin E2
PGF2α	Prostaglandin F2 alpha
LOG	Length of gestation
POP	Persistent Organic Pollutant
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PTB	Preterm Birth
ROS	Reactive Oxygen Species
SGA	Small for Gestational Age
TTP	Time to Pregnancy
UWW	Uterine Wet Weight