It is not necessary to be against the cervix to get pregnant. As long as the penis enters the vagina and internal ejaculation occurs, pregnancy is possible. Sperm have a certain amount of swimming, so the chances of pregnancy are essentially equal between a healthy adult male and female having substantial sex and completing an internal ejaculation, regardless of the depth of the ejaculation. Relaxing, lying down for a while after ejaculation, and having sex during ovulation may be more conducive to pregnancy. After 10 days of intercourse, or 5 days after the next menstrual period is delayed, test with a pregnancy test stick or early pregnancy test paper, basically, you can initially determine whether you are pregnant or not.