Many women often ask the question, how soon I can take a pregnancy test after intercourse. However, the best time to have such a test is about 10 days after unprotected sex. This period is ideal because you will not have to wait for pregnancy symptoms to manifest. Symptoms of pregnancy often become evident about 2 to 3 months after sexual intercourse. By that time, your pregnancy might come to you as a surprise, especially, if it is an unplanned pregnancy.
The ideal time to have a pregnancy test is in the morning, about 10 am. Hormones are at their best around that time and so you are likely to get accurate results. You can choose to have urine or blood tests. Usually a positive test for pregnancy appears 10 to 14 days after ovulation, and this is due to a number of reasons. It is important to note that to detect early pregnancy positively, the fertilized egg has to attach itself to uterus, which could take a number of days. Once that happens, there is sufficient amounts of human choronic gonadotropin(HCG) in your bloodstream and urine to enable you get accurate results about your pregnancy.
Generally, the fertilized egg attaches itself into the endometrium about a week after the ovulation (that is about 6 to 12 days). After that, it takes 3 to 4 days after the implantation for the blood pregnancy test to become positive. However, the earliest you can get early positive urine test is 2-3 days later. This is because the hCG in the blood has to go through the kidneys for filtration before entering the urine. Therefore, it normally takes about 3-4 days after the egg attaches to the uterus for you to know you are pregnant; that is about 9-10 after fertilization and ovulation.
In case you choose to have a urine pregnancy test, you should note that many women take about a week after implantation or until they miss their period to accurately know their pregnancy status. Although manufacturers of urine pregnancy test devices often states the kits will enable you get positive pregnancy results before missing your period, about 30% of women get positive results only after they have missed their period.
Usually, a pregnancy test works by detecting the presence of hCG, which is a pregnancy hormone, in either the urine or blood. It takes about a week for the fertilized egg to travel through the fallopian tube to the uterus after ovulation. During this period, the fertilized egg attaches itself to the uterus. On average, this process takes about 6-12 days. Soon after implantation, the placenta begins to make hCG, which gets into the blood stream.
Therefore, the best time to take a pregnancy test will greatly depend on the amount of hCG which you can detect in the blood 3-4 days after implantation. A level of less than 5mIU/ml hCG means you are not pregnant. However, when your hCG level is above 25mIU/ml, this means that you are pregnant.