1 Assume the pool is used 3 days per week between May and August for ~50 uses/yr max â While there will be some spurts in the summer where kids are in the pool every day, there would be rainy days, travel/vacation outages and other scenarios to even it out.
Pregnancy does not start at conception. Once an egg is fertilized it can take around 6-10 days for that fertilized egg to then travel down the fallopian tube and to the uterus where it can then implant for pregnancy to occur. How long this takes can vary on factors such as where the egg is fertilized in the fallopian tube and overall health. Depending on where a woman is in her cycle pregnancy could occur anywhere from between 6-17 days after sex.
It takes about 38 weeks for a fertilised egg to develop into a full term baby. The changes that occur over this short time are quite amazing. This page describes some of the things that a fetus can do, and when they start (see here for an animation on fetal development). All of the fetusâs senses will be stimulated naturally during the course of pregnancy, except for vision.