You can also continue to wear your drawstring pajama pants, which are quite forgiving and can be tied beneath your tummy if the waistband becomes too tight. These are good choices if you tend to put on weight during pregnancy. During the first trimester, you should avoid wearing tight clothes as your abdomen may feel big even though you're actually carrying a small baby. During this time, it's best to wear clothing that is comfortable but visible to hide your growing belly. After about the second trimester, you can re-enter the world of high heels and figure-fitting dresses again provided you aren't experiencing any pain when standing or walking. In the third trimester, it's important to dress in garments that don't have buttons or zippers because these items can cause damage to your belly due to excessive pressure. It's also recommended to wear clothes that fit properly since you will be giving birth to a newborn baby soon after the end of the third trimester. In addition, it's important to wear shoes that fit your feet correctly since poor fitting shoes could lead to foot problems such as bunions or corns. Overall, tying your pajamas when pregnant is an acceptable practice that can be used to conceal your growing belly while still being comfortable and easy to move around in.