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Ovulation
when a mature egg is released from the ovary, pushed down the fallopian tube, and is made available to be fertilized -
Conception
When the ovum and sperm unite, conception takes place, and pregnancy begins -
Trimester 1: Month 1
Mother:
- Missed Period
- Egg attaches to lining of uterus Baby:
- Size: at two weeks, the size of pinhead
- Internal organs and circulatory system begins to form
- Heart begins to develop
- Small bumps indicate the beginning of arms and legs -
Trimester 1: Month 2
Mother:
- Breasts Begin to Swell
- Possible Nausea (morning sickness)
- Pressure on Bladder Baby:
- Size: 1/4 inch
- face, eyes, ears, and limbs begin to take shape
- bones begin to form -
Trimester 1: Month 3
Mother:
- Breasts become fuller and firmer
- abdomen becomes slightly larger
- uterus is size of orange
- weight gain may total 2-4 pounds Baby:
- Size 1 inch
- nostrils, mouth, lips, teeth buds, and eyelids form
- fingers and toes are almost complete
- all organs are present, although immature -
Trimester 2: Month 4
Mother:
- abdomen begins to grow
- discomfort of early pregnancy, such as morning sickness is gone
- appetite increases Baby:
- Size: 3 inches long
- 1 ounce as month begins
- Can suck thumb, swallow, hiccup, and move around
- facial features become clearer -
Trimester 2: Month 5
Mother:
- Enlarged abdomen becomes apparent
- slight fetal movements felt
- increased size may begin to affect posture Baby:
- Size: 6 1/2-7 inches
- 4-5 ounces as month begins
- hair, eyelashes, and eyebrows appear
- teeth continue to develop
- organs are maturing
- becomes more active -
Trimester 2: Month 6
Mother:
- fetal movements sensed as strong kicks, thumps, and bumps
- weight gain by the beginning of this month may be a total of 10-12
pounds Baby:
- Size: 8-10 inches
- 8-12 ounces
- fat deposits under skin
- fetus appears wrinkled
- breathing movements begin -
Trimester 3: Month 7
Mother:
- increased size may affect posture Baby:
- Size: 14-16 inches
- 1 1/2-2 pounds
- weight gain continues rapidly
- may react to loud noises
- moves into head down position -
Trimester 3: Month 8
Mother:
- discomfort from size
- fetal kicks may affect mother's sleep
- weight gain is up to 18-20 pounds Baby:
- size: 14-16 inches
- 2 1/2-3 pounds
- weight gain continues rapidly
- may react to loud noises
- moves head into down position -
Trimester 3: Month 9
Mother:
- "lightening" felt as the fetus drops into the pelvis
- breathing becomes easier
- other discomforts may continue
- total weight gain is 25-35 pounds
- false labor pains may be experienced
Baby:
- size: 17-18 inches
- 5-6 pounds
- weight gain continues until the week before birth
- movements decrease as the fetus has less room to move around
- acquires disease-fighting antibodies from the mother's blood
- descends into pelvis, ready for birth
