Menstrual cramps happen during a period, which occurs approximately once every 28 days, so long as there is no pregnancy. Prostaglandins are associated with pain and inflammation.
This process may cause cramping. One-quarter of participants in a study reported bleeding in their first trimester. Only 8 percent of those had heavy bleeding. Not everyone has cramps during implantation. And for those that do, the cramps may be mild or moderate. It is unusual to have intense cramping pain during implantation, so anyone who experiences painful cramping between periods should be assessed by a doctor.
Implantation tends to happen 6 to 12 days after ovulation when pregnancy occurs. This is about the same time that a person would usually expect a period to start. If an egg has been fertilized, the body prepares the uterus lining to receive and protect the egg. Some light bleeding or spotting may accompany implantation cramping. This is called implantation bleeding and is lighter than a regular period.
Because of the similarity of symptoms between menstruation and implantation, it helps to know the other early signs of pregnancy. If someone thinks they are pregnant, it is a good idea to take a home pregnancy test. A good time to do this is 1 to 2 weeks after noticing the early signs of pregnancy. Pregnancy tests are available to buy in supermarkets, health stores, and online. If a fertilized egg has implanted into the uterus wall, the body will already have started to form the placenta.
In this situation, the pregnancy hormone, human chorionic gonadotropin hCG , begins to rise. Around 2 weeks after implantation, hCG levels will be high enough for a pregnancy test to be positive.
If the pregnancy test is positive, the next step is to make an appointment with a doctor. The doctor can confirm whether the home test is correct. Anyone who already knows they are pregnant and is experiencing heavy bleeding or cramping should speak to a doctor.
These symptoms may indicate a problem with the pregnancy. Sort by: Newest. Newest Oldest. Read More. Load More Comments. Close this dialog window Add a comment. Add your comment Cancel Submit. Close this dialog window Review for. Back to story Comment on this project. Tell us what you think Thanks for adding your feedback.
All rights reserved. Close Sign in. You might also have implantation bleeding, which is lighter than a typical period. If you have severe pain or heavy bleeding, call your healthcare provider.
Implantation cramps feel similar to menstrual cramps, though they're usually milder. In fact, some women mistake them for premenstrual cramps. Not everyone feels implantation cramps, but if you do it may feel like a light twinge or prickling, or it may feel dull and achy. An early sign of pregnancy, implantation cramps happen when the fertilized egg at this point called a blastocyst nestles into the lining of your uterus.
This may be accompanied by spotting or light bleeding — much less than you would have with a normal period. You feel implantation cramps in your lower abdomen, in the middle rather than on one side.
It's your uterus that's cramping, even if the implantation is happening in one area. You may also feel the cramping in your lower back. Again, you may not feel implantation cramps and that doesn't mean anything about the health of your pregnancy. Some women feel this cramping and some don't. Implantation cramping typically occurs between six and 10 days after ovulation if you have an average, day menstrual cycle.
This would put it:. Besides cramping, you might also have some light bleeding. It would be light pink or brown rather than red like your period, and it would be very light. The spotting would last only a few days at the most. If you miss your period, you'll have another strong indication that what you were feeling was implantation. For best results, take a pregnancy test a few days to a week after you expect your period. If you're having cramping and it's not implantation, you might have a digestive problem, such as gas or a stomach flu.
Or you may be feeling an egg release from your ovary. The name for this ovulation pain is Mittelschmerz. You would feel it on one side of your lower abdomen about halfway through your menstrual cycle — so earlier in your cycle than implantation cramps.
These signs may indicate something that needs medical attention, such as an ectopic pregnancy , an ovarian cyst , appendicitis, or a miscarriage.
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