With all you have to do in the next five months, you can rest assured you needn't spend much time worrying if:
You haven't starting exercising yet. Don't sweat it. Just find a prenatal yoga, water aerobics or personal exercise routine today. Talk to your doctor and/or do some research, and get moving. You'll benefit no matter when you start.
The scale is stressing you out. It's a fact of life that some women don't get along with scales. Don't bother weighing yourself at home, then, unless your doctor has advised it. You'll get weighed at your prenatal checkups.
You're not feeling any movement yet. Some women don't feel movement until the fifth or sixth month. It doesn't mean there's no motion in there, it simply means it's not powerful enough for you to feel it yet through all that padding, or else you're feeling it and mistaking it for indigestion. For first-timers, it can be hard to differentiate the two initially.
Oh, and if you're showing and those questions from perfect strangers are stressing you out, feel free to smile politely, give a one-word response and walk away. You're not obligated to have an in-depth conversation about heartburn with that mother of six in aisle 3. Pregnant ladies tend to get some social-graces leeway.
For more information on pregnancy, parenthood and related topics, look over the links on the next page.