In some cases the woman cannot precisely understand what term of pregnancy at it and when there will occur childbirth. For calculation of these dates there are special techniques which can be used both by doctors, and pregnant women in house conditions.
Instruction
1. Address the gynecologist. He will be able to make exact calculation, proceeding from date of your last periods and also the sizes of the child determined on ultrasonography. The doctor considers also the uterus size. The uterus of 12 cm approximately corresponds to the third month of pregnancy.
2. Make the test on HGCh hormone. It appears in the woman's organism at implantation of an embryo and the amount of hormone daily increases. To the HGCh level pregnancy when using house tests as it comes to light in urine is defined. This analysis is especially convenient on early terms, to 6-8 weeks of pregnancy. For the first week after conception standard of the contents of HGCh - the 150th honey/ml, and on the eighth week - about 70000 honey/ml. Consider that the deviation in indicators can mean an unusual situation about pregnancy time. Too low maintenance of HGCh and its slow growth can indicate risk of an abortion or extra-uterine pregnancy, and considerably exceeding norm - on pregnancy by twins or triplets.
3. Make calculation of term independently. For this purpose specify date of the last monthly. Pregnancy term in weeks also calculates from them. The so-called obstetric penal which can differ from date of conception is got. Normal childbirth occurs on the fortieth-forty second week of obstetric term, that is from the last monthly. However in some cases they can come earlier or be late because of a pregnancy perenashivaniye. Even the doctor will not be able to predict exact start date of patrimonial activity.
4. Determine term by the size of a stomach and stir of the child. The stomach becomes visible usually on the fourth month, and the child begins to move considerably for mother on 18-20 week of development. If the woman is pregnant not for the first time, then, most likely, she will feel stir earlier.