It is not uncommon to experience abdominal cramps and lower back pain during the first 10 weeks of pregnancy. These symptoms can be caused by various factors such as hormonal changes, stretching of ligaments, or the growing uterus putting pressure on surrounding muscles. However, if the pain is severe or accompanied by other concerning symptoms such as bleeding or fever, it is important to consult your healthcare provider for further evaluation. They can help determine if there is an underlying issue that needs attention. In general, it is always best to trust your instincts and seek medical advice if you are unsure or worried about any symptoms you are experiencing during pregnancy.