Frequent urination and breast pain are not necessarily symptoms of pregnancy. During pregnancy, the forward tilting of the uterus presses on the bladder, which can cause frequent urination. Breast pain generally occurs around the eighth week of pregnancy due to an increase in estrogen and progesterone, promoting the growth of mammary ducts and tissue. However, these are not exclusive symptoms of pregnancy. To confirm pregnancy, detection through blood and urine HCG tests, as well as ultrasound scans can be used. For blood HCG levels, they can be detected as elevated about ten days after intercourse, and urine HCG can be detected about 14 days after intercourse using a pregnancy test. Around six weeks after missing a period, an ultrasound can determine if there is any pregnancy tissue in the uterus.