Menstruation has been delayed for eight days this month. I have tested it several times with a pregnancy test stick. I'm not pregnant. I have sex with my husband. He doesn't wear a condom, but he shoots out every time. The body has been low back, sometimes the lower abdomen will also have abdominal pain, weight gain, how is this going on?
It is recommended to check the blood HCG once, which can determine whether you are pregnant more than the urine test. If you don't have a roommate within ten days after having a roommate, then the blood HCG is negative and pregnancy can be ruled out. Such conditions as low back acid and low abdominal pain don't rule out preparing for menstruation. You can observe for a few more days. External ejaculation has no reliable contraceptive effect.
If you still have sex and haven't done contraception recently, you should test with a pregnancy test stick for more than 12 days in the same room for the last time. At that time, the pregnancy test stick shows negative. I think you basically rule out the possibility of pregnancy. Of course, if menstruation doesn't come, it may also be caused by endocrine disorders. For example, recently, you often stay up late and have too much mental pressure. These external ejaculations still have the probability of pregnancy.
Relying only on the situation you described can not clarify the reason for the delay of menstruation. If there is no contraceptive measures and only external ejaculation, but you never get pregnant, this situation is generally abnormal. It is best to go to the hospital to improve the relevant examination and help clarify the reason. Online diagnosis and treatment is only for reference