Â© 2014 WebMD, LLC. All rights reserved. The skin is the largest organ of the body, with a total area of about 20 square feet. The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold. Skin has three layers: 1  The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. 2  The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. 3  The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
The honeymoon period tends to last anywhere between 6 months and a year. The relationship still feels fresh and exciting, and youâre constantly learning new things about each other and having first experiences together. But there comes a point when suddenly youâve done all that stuff together already.
The countdown begins â 280 days until your estimated due date in 40 weeks. The average length of a normal pregnancy is 280 days (or 40 weeks), and it starts with the first day of your last menstrual period. On day 1 of pregnancy week 1, you just started your period. Youâre bleeding, so there is no possible way that youâve conceived (and you wonât actually conceive for another two weeks).