When Do You Start Spotting (Implantation Bleeding)?

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During pregnancy, a pregnant woman can experience a lot of changes. Even some of these changes can occur at first week after conception. The process of fertilized egg that implants into the wall of the uterus can result in a noticed light bleeding (familiar called ‘spotting’). So, when do you start spotting? And how long does this implementation bleeding last?

*You might also like to read the first time of when pregnancy usually causes nausea, constipation, and breast changes in here!

Although light spotting due to implantation is one of the most common symptoms of early pregnancy, a few women who don’t notice it. The most important thing, it is very common and perfectly normal – so there should be nothing to worry!

What actually is conception of pregnancy?

The calculation for the age of pregnancy is more accurate if based on the day of conception. But unfortunately many women don’t know the exact day of when they conceive. Therefore, the first day of last menstrual period is commonly used to start counting the age of pregnancy.

In general, the time of conception is estimated from 2 weeks after the last menstrual period – particularly true for women who have 28 days of regular menstrual cycle.

Ovulation

It is a term used to describe the time of when the egg is released from ovary. In women of childbearing age, a group of eggs begins to develop & grow in small places called follicles (fluid-filled sacs) – and this process occurs each month inside ovaries.

Then about 2 weeks before the next menstrual bleeding, one of these eggs eventually erupts and releases from the follicles for fertilization (the starting point of pregnancy).

Thickening the wall of uterus

After the egg is released, then the follicle will start developing a phase called corpus luteum to stimulate the production of certain hormones for thickening the uterus lining.

Where then the egg will go?

After the egg leaves the ovary, it will move to a tube called fallopian tube. Once it reaches in the fallopian tube, it stays for about a day waiting & looking for a luckily single sperm for fertilization. So, there are now 2 possibilities; (1) no-fertilization or (2) fertilization that does occur!

If there is no any sperm around the egg, fertilization will not occur. Then the egg leaves the fallopian tube and moves to uterus and collapses on its own. The levels of your hormone then go back to normal, and eventually the wall of uterus that was thickened will fall in — as a result you have menstrual bleeding!

If there is a sperm that does go into the fallopian tube and then meets to the egg, a conception may occur. Once the egg was fertilized, it changes in order to avoid other sperms to get in. The fertilized egg then will go to the uterus [reference].

When do you start spotting in pregnancy – how long does it last?

For fertilized egg, it will stay in the fallopian tube for about 2– 3 days. Then it moves to the uterus for implantation.

And as mentioned before, this implantation can cause a light bleeding (spotting), when?

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