Medical Q&As

Conception - periods after conception?

We are trying for a baby and I would like to know if I was pregnant do I still get my first period after conception. What is the best time to wait after conception to do a test?

Periods stop for the entire duration of a pregnancy from the time of conception until after the baby is delivered. If you have recently conceived you will not get a first period after conception. You also ask about the best time for performing a pregnancy test. The pregnancy test is based on the detection of a particular hormone called H.C.G. (human chorionic gonadotrophin), which is only present in the urine during pregnancy. H.C.G. is produced when the tiny embryo implants into the wall of the womb. This occurs within a few days of fertilisation taking place. Therefore it is possible for a pregnancy test to give a positive result within a week of actually conceiving. However, the amounts of H.C.G. in the urine may be very small and may not be detectable in the early days after implantation. If you strongly suspected that you were pregnant it would probably be better to wait a further few days to perform the pregnancy test. As a general rule I would suggest waiting 10 to 14 days after the date of suspected conception in order to allow the H.C.G. levels to rise. If you do the test prematurely you could still be pregnant but suffer the disappointment of obtaining a negative result. Wait the few extra days if you can restrain yourself.