But maybe also because of stress and because your mind is racing. Top marks! Site Map: Sore breasts. Share Tweet Copy Link. The pregnancy could still be normal but simply off by a few days in the dating—or the dating could be accurate but the timing is still within the margin of error for when the heartbeat becomes detectable on an ultrasound. The yolk sac is first visible at 5 weeks and it is always present by 5 weeks and 4 days.
As the pregnancy hormone, HCG increases, you may also notice an increased urge to urinate.
4 Weeks Pregnant
While your sonographer takes measurments they will explain what you are looking at. These secrete a fluid that prepares the nipples for breast feeding. Many people wait until the second trimester to tell friends and family as this is when the risks of miscarriage reduce. Better start prepping those milk ducts!