stages of pregnancy and normal birth Flashcards
how many trimesters are there
3
how long is 1 trimester
3 months
what hormone is secreted after egg is implanted
HCG Human chorionic gonadotropin
what does oestrogen do
what increases during pregnancy
blood pressure+ stroke volume
air moved in/out lungs increase and oxygen
kidneys receive more blood
gi changes- morning sickness (rising hcg levels)
breasts get bigger and become darker
uterus becomes bigger and larger
cervix is softer
metabolic rate increases
increase appetite
what forms during the first few weeks
main organs and systems
when is it classed as fetus and not embryo
week 10
what week do the genitals begin to form
week 12
when is second trimester
week 13-26
symptoms during second trimester
- swollen and bleeding gums
- pains on the side of your belly caused by your expanding womb (known as “round ligament pains”)
- headaches
- nosebleeds
- bloating
- constipation
- indigestion and heartburn
- sore breasts
- leg cramps
- feeling hot
- dizziness
- swollen hands and feet
- urine infections
- vaginal infection
- darkened skin on your face or brown patches – this is known as chloasma or the “mask of pregnancy”
- greasier, spotty skin
- thicker and shinier hair
how big is the foetus at 13 weeks
foetus, is around 7.4cm long, which is about the size of a peach.
when is full term
week 37-40
when is the third trimester
week 27 to birth
how big is a baby at 28 weeks
foetus, is around 37.6cm long from head to heel. That’s approximately the size of an aubergine.
what is a babies heartbeat
Your baby’s heart rate is changing all the time. Around week 5 or 6, when a baby’s heart is first detectable, it is around 110 beats per minute (bpm). Then it goes up to around 170 bpm in week 9 and 10.
Now, it’s slowed down to around 140 bpm and it will be around 130 bpm at birth.
That’s still a lot faster than your heart rate, which will be around 80 to 85bpm. This is partly because babies’ hearts are so small that they cannot pump much blood, but they can make up for this by going faster. It also helps to keep them warm.
what is the furry hair covering a foetus until week 38
lanugo
what is the sticky green slime in a foetus’ bowels
meconium
what is the first milk called
colostrum- high in antibodies
when does a baby go head down by
32 weeks
what is excessive nausea and vomitting during pregnancy called
hyperemesis gravidarum (HG)
signs and symptoms of HG
prolonged and severe nausea and vomiting
dehydration – symptoms include feeling thirsty, tired, dizzy or lightheaded, not peeing very much, and having dark yellow and strong-smelling pee
weight loss
what causes HG
It’s not known exactly what causes HG, or why some women get it and others do not. There is evidence that it is linked to the changing hormones in your body that occur during pregnancy.
There is some evidence that it runs in families, so if you have a mother or sister who has had HG in a pregnancy, you may be more likely to get it yourself.
If you have had HG in a previous pregnancy, you are more likely to get it in your next pregnancy than women who have never had it before, so it’s worth planning in advance.