Search on: FERTILE PERIOD 
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Descriptor English:   Fertile Period 
Descriptor Spanish:   Periodo Fértil 
Descriptor Portuguese:   Período Fértil 
Tree Number:   G08.686.605.154
Definition English:   The period in the MENSTRUAL CYCLE that is optimal for FERTILIZATION of the OVUM and yielding PREGNANCY. The duration of fertile period depends on the life span of male GAMETES within the female reproductive tract and the time of OVULATION. It usually begins a few days before ovulation and ends on the day of ovulation. 
See Related English:   Natural Family Planning Methods
 
History Note English:   2005; use MENSTRUATION 1980-2004 
Allowable Qualifiers English:  
BL blood CF cerebrospinal fluid
DE drug effects EH ethnology
GE genetics IM immunology
ME metabolism PH physiology
PX psychology RE radiation effects
UR urine  
Record Number:   38860 
Unique Identifier:   D046910 

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