The fetus began as just two cells that joined and started dividing rapidly, by two weeks the cells became an embryo, placenta and umbilical cord - by the end of the first trimester (11 to 12 weeks) the fetus has all the organs in place that he or she will be born with, the genitalia are still to immature to visually detect the baby's sex but will be fully developed in just a few weeks. The baby to be has a beating heart, functioning bladder and practices breathing by inhaling the amniotic water.
1st trimester- all of the baby's body structures and systems develop 2nd trimester- marked by the grown and masturbation of the fetus's organs and body systems. 3rd trimester- the fetal systems continue to grow and mature also the time of the greatest weight gain
Their sex is predetermined well before he's been born. The sperm that joins with the egg must be a Y chromosome for the embryo and fetus to be male. The fetus starts developing its male parts in the first part of the 1st trimester.
As soon as you find out you are pregnant. However, you can only have an abortion BEFORE the end of the 1st trimester. In some areas it is even before that, check the laws in your area. If you still do not intend to be a parent and you are pregnant past the first trimester, take care of yourself and your fetus so that another family can adopt your healthy child.
During the 1st trimester, all the major body organs form. The heart begins to beat at 4 weeks, and by the end of the 1st trimester fetal heart sounds are able to be heard. During the 2nd trimester, the fetus looks like a baby, the sex of the baby can be determined, and sometime between the 16th-20th weeks the mother will begin to feel the baby's movements. The baby will become more active. Hair, eyebrows, and eyelashes develop. During the 3rd trimester, the baby develops the ability to breathe as surfactant is produced. Finger and toe nails form, and the baby continues to grow and create subcutaneous fat. During this time the baby is also able to open and close it's eyes.
No, you are fine. My doctor said I could take 2 Advil in the 2nd trimester for pelvic bone pain. Just don't take ibuprofen in the 1st or 3rd trimester.
No
Yes, some people do. Some of the 'bump' in the first trimester is just from bloating, however
unlikely to be with efficacy in 1st trimester
yes
yes
None
three months