Do you think it is possible to accurately determine pregnancy using early pregnancy test strips? It takes about a week for fertilized eggs to implant. During this week, early pregnancy test strips cannot detect pregnancy, but if you want to know in advance whether we can be pregnant or not, we can judge by several changes in body. If following symptoms appear, 80% of of them are pregnant and an early pregnancy test is useless.
If these symptoms appear, 80% of them are pregnant.1. Breast changes

One to two weeks after implantation of a fertilized egg, breast will undergo changes when estrogen and progesterone are stimulated together. After pregnancy, a pregnant woman will release large amounts of estrogen and progesterone, which will stimulate growth of mammary glands and enlarge breasts. It also encourages breasts to accumulate more fluid, so breasts become sore and tender. In addition, nipples are more sensitive and prone to tingling, areolas are darker, and dark brown nodules appear around nipples. After 12 weeks there will be some watery milk secretion.
2. Increased secretion
The obvious change after pregnancy is an increase in secretion, which is mainly due to change in hormone secretion during pregnancy. This is a normal physiological phenomenon and pregnant women do not need to worry too much. But if discharge is yellow, with foul smell, itching, bean curd residue, bean lumps, etc., it is best for pregnant women to go to hospital for treatment. Do not use medicine yourself or ignore it so as not to endanger health of yourself and fetus.
3. Frequent urination symptoms

Frequent urination is also a very important sign of early pregnancy. Why does frequent urination occur after pregnancy? This is because increased blood flow also puts pressure on kidneys, so amount of urine also increases. There will also be frequent urination in third trimester of pregnancy, and reason for frequent urination is that baby will compress bladder and cause more frequent urination.
4. Morning sickness
Morning sickness can happen sooner or later. Some people will appear after more than one month of pregnancy, and some people will not appear until about 2 months. But usual morning sickness disappears after about 3 months of pregnancy. Of course, there are pregnant women with a false pregnancy, and their vomiting throughout pregnancy is negligible. Expectant mothers are really happy to have this baby.
5. Increased body temperature

If menstruation is regular, temperature regime is usually biphasic throughout menstrual cycle. This is because a woman's body temperature rises by about 0.5°C during ovulation and persists for a certain period of time. If she is not pregnant, her temperature will drop to normal levels. Interested friends can test themselves at home. The first step after waking up in morning is to measure your basal body temperature and write it down. It is also easiest and most economical way to monitor ovulation.
The above are some of symptoms of pregnancy. If you have above symptoms while preparing for pregnancy, it means that you are pregnant. At this time, you should pay attention to your diet during pregnancy and regular check-ups. at same time, stay up late and do not carry heavy objects, as this can lead to miscarriage.