Implantation Bleeding After Conception - When Does It Happen?
If you are trying to conceive, you are dying to see that positive pregnancy test! One of the first signs of pregnancy that you can look for is implantation bleeding.
What Happens Before Implantation
Before you notice implantation bleeding, several things need to occur in your body.
Ovulation usually occurs once a month. Your ovary releases the egg into your fallopian tubes about 14 days before your period is due. Once released, your egg survives 12 to 24 hours. If not fertilized in that time, your egg will start to disintegrate.
If you have sex before ovulation or the day of ovulation, lucky sperm might be waiting to fertilize the egg. Healthy sperm can survive up to 5 days in the woman's reproductive tract. Optimally, having sex as close to ovulation as possible increases your chance of getting pregnant.
Implantation of the Fertilized Egg
Once conception has occurred, the fertilized egg will travel to the uterus. As the egg is moving, the cells will continue to divide and grow in size. When the egg arrives at the uterus, it will attach to the uterine wall (implantation). It starts to produce the hormone that pregnancy tests detect, hCG, after implanting. The time required for the egg to travel to the uterus and implant is usually between 7 and 10 days.
What is Implantation Bleeding?
When the egg implants, some women experience implantation bleeding. You may notice a small amount of blood when you wipe, after using the bathroom. The blood is typically a light pink or brownish tinted color. The amount is much less than when your period starts. When the egg implants in your uterus, it develops a layer of cells called the trophoblast. The trophoblast provides nutrients to the growing egg by burrowing into the uterine wall. When this happens, a small amount of blood can leak into the uterine cavity, causing implantation bleeding. Implantation bleeding does not occur with every woman. Usually, only about 30% of women will experience implantation bleeding. You will often see implantation bleeding 3 to 6 days before your period is due if you are one of the 30%.