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How do you know if you are pregnant and how long you have been pregnant for?

Most women determine that they are pregnant if they are sexually active and have missed a period. Nausea, breast soreness, and fatigue are also common symptoms in early pregnancy. Ultrasound or pregnancy tests are the only ways to immediately be sure that a woman is pregnant.

You can do a pregnancy test from the first day you missed your expected period and onwards. Before this time, the level of hormones produced by the pregnancy is too low to show up on the test and you may test negative while you might be pregnant.

If an ultrasound is performed, the doctor can tell a woman exactly how long she has been pregnant. The doctor can also estimate the length of the pregnancy without using ultrasound. A pregnancy test cannot provide this information. A woman can also make a reasonable calculation of about how long she has been pregnant. She must figure out when the first day of her last menstrual period was, include that day and start counting up until today.

Pregnancy Calculator

Select the month and the first day of your last regular menstrual period.

You are x weeks and x days pregnant.