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.
Marriage and the birth of their first child was 15 months by 1970 it was 27 months today it's common for women to have their first child at the age of 30. Women bt. 30 and 34 accounted for 23% of all births in 1998.