pregnancy week by week 1 to 40 weeks

This is for informational purposes only. For medical advice or diagnosis, consult a professional.
Rumble is not a recognized term in the context of pregnancy. It's possible you may be referring to:
* Quickening: This is the term used to describe the first fetal movements a pregnant woman feels. It typically occurs around 18-20 weeks of pregnancy. These movements can feel like flutters, bubbles, or even light kicks.
* Braxton-Hicks contractions: These are also known as "practice contractions" or "false labor." They are irregular tightening and relaxing of the uterine muscles that can start as early as the second trimester. They usually don't cause any pain and don't lead to labor.
If you're experiencing any unusual sensations during your pregnancy, it's always best to consult with your healthcare provider. They can help you understand what you're feeling and ensure everything is progressing normally.
Here are some general descriptions of fetal development week by week:
First Trimester (Weeks 1-12)
* Weeks 1-4: Fertilization occurs, and the embryo begins to implant in the uterine lining.
* Weeks 5-8: Major organs and body systems begin to form. The embryo starts to resemble a human, with a head, limbs, and a beating heart.
* Weeks 9-12: The fetus continues to grow and develop. The major organs and systems continue to mature. The fetus may start to make movements, but they are usually too subtle for the mother to feel.
Second Trimester (Weeks 13-27)
* Weeks 13-16: The fetus grows rapidly in size and weight. The mother may start to feel fetal movements, which are often described as flutters or bubbles.
* Weeks 17-20: The fetus becomes more active and responsive. The mother may feel stronger movements, such as kicks and rolls.
* Weeks 21-24: The fetus's lungs are starting to mature, but they are not yet fully developed. The fetus may survive if born prematurely at this stage, but would require intensive medical care.
Third Trimester (Weeks 28-40)
* Weeks 28-32: The fetus continues to grow and gain weight. The mother may experience Braxton-Hicks contractions, which are practice contractions for labor.
* Weeks 33-36: The fetus is preparing for birth. The lungs are continuing to mature, and the fetus is moving into a head-down position in preparation for delivery.
* Weeks 37-40: The fetus is considered full-term and ready for birth. The mother may experience Braxton-Hicks contractions more frequently and may also experience other signs of labor, such as a bloody show or water breaking.
Please note that these are just general descriptions of fetal development. Every pregnancy is different, and the timing and progression of fetal development can vary. If you have any questions or concerns about your pregnancy, please consult with your healthcare provider.