It’s impossible to know that you’re pregnant during your first week of pregnancy. Your pregnancy can’t be confirmed until you miss your first period, so most women don’t discover they’re pregnant until a few weeks to a month after conceiving. However, if you’re trying to get pregnant, there are some things you can do now to promote a happy and healthy baby from the very first week of your conception. To prepare your body for your baby, follow these tips while you’re trying to conceive:

Start Exercising

Unless specifically told not to exercise by your doctor due to complications during your pregnancy, exercising while expecting will be good for your body and your baby. Regular exercise will help you avoid gaining excess weight, will help you lose your baby weight more quickly after delivery, and will help you avoid developing stretch marks or varicose veins while you’re pregnant. If you get into the habit of exercising before you conceive, it will be easier to continue your exercise plan while you’re pregnant.

Give Up Coffee and Sodas

Your doctor will tell you that drinking caffeine is unhealthy for your baby, so you’ll need to take some time off of coffee and caffeinated sodas while you’re pregnant. Your first trimester may be difficult in and of itself if you suffer from morning sickness, so giving up caffeine before you conceive will lessen your discomfort by not adding caffeine headaches to the mix of first trimester ailments.

Stop Smoking

If you’re a smoker, it’s best to put down cigarettes during or before your first week of pregnancy so that you and your baby are both nicotine free. Smoking while pregnant may cause premature birth and may increase the likelihood that your child will become a smoker later in life, so the sooner you kick the habit, the better.

Start Taking Vitamins

You’ll need to take prenatal vitamins during your pregnancy, so it’s best to get in the habit early. You can go ahead and start taking prenatal vitamins while you’re trying to conceive, or you can simply take women’s vitamins. Getting in the habit of taking them every day is the most important thing.

Start Using Anti-Stretch Mark Lotions

Because your body expands rapidly during pregnancy, expecting mothers have a high risk of developing stretch marks while they’re pregnant. Stretch marks are caused when brittle skin tears and scars due to stretching, and if you develop stretch marks during your pregnancy, you may have them for the rest of your life. Because of this, it’s best to take preventative measures over the course of your entire pregnancy in order to avoid stretch marks.

Many lotions and creams are available that will strengthen your skin and make it more elastic during your pregnancy, reducing the likelihood that your skin will stretch, tear, and scar as your body grows to support your developing fetus. Applying a stretch mark cream or lotion every day during your pregnancy—from the first week of conception to delivery—will drastically reduce the likelihood that you will get stretch marks.