While cocaine's effects are usually immediate, the effect it can have on a fetus may last a lifetime. Babies born to mothers who smoke crack cocaine during pregnancy -- so-called ''crack babies'' -- usually have their own set of physical and mental problems.hile cocaine's effects are usually immediate, the effect it can have on a fetus may last a lifetime. Babies born to mothers who smoke crack cocaine during pregnancy -- so-called ''crack babies'' -- usually have their own set of physical and mental problems.
Last year, there were 27,000 babies born to momâs over 40. The study was done to help women understand their fertility lifecycle. They still argue that the safest time to have a baby is between 20 and 35. In fact, 30% of 35 year olds need more than a year to conceive while only 5% of 25 year olds need this much time.
1 Also, one breast may start growing faster then the other. 2  They will eventually even out, although they will never be exactly alike. 3  You will most likely get your period (a.k.a menstruation) between the ages of 8 and 16. 4  This means that you will be able to have a baby. Usually, that means that your voice will become deeper. 2  You will see hair begin to appear under your arms, around your groin, and on your face, and hair on your arms, legs, and other areas of your body will become thicker and heavier. 3  Your penis and your testes will grow larger.