2007-10-11 09:57:03 · 3 answers · asked by Anonymous in Pregnancy & Parenting ➔ Pregnancy
It's not very much, because the demands of the baby aren't very great yet. A woman's total blood volume increases overall by around 50% by the end of pregnancy. An average woman (non pregnant) contains about 4-5 liters depending on body size, so an increase of 50% would be an additional 2-2.5 liters for a total of 6-7.5 liters at full term. So, then if you accept that most of that is gained in the last half of pregnancy, a woman might gain a half liter or less in blood volume during the first trimester.
2007-10-11 10:06:37 · answer #1 · answered by Take A Test! 7 · 0⤊ 0⤋
I'm not sure about first trimester but I read that by the time you give birth your blood volume has increased by 1.5 times normal.
2007-10-11 17:02:55 · answer #2 · answered by Staci 3 · 0⤊ 0⤋
I never measured. I don't know.
2007-10-11 17:01:02 · answer #3 · answered by Precious 7 · 0⤊ 0⤋