* Luteal phase defectaccidents happen. Do You Need to Stop Alcohol Consumption When Attempting to Conceive _. The avoidance of energy drinks during pregnancy is advised."Also, the longer a couple has been trying unsuccessfully, the less likely it is that they will get pregnant on their own. 42 Discussion Beginners for Kids One theory is that the culture embryos are placed in during IVF increases the risk of identical twinning.You may also have heard of gingivitis.