It is possible that you may be pregnant with twins based on the significant increase in your beta hCG levels. Beta hCG is a hormone produced during pregnancy, and its levels typically double every 48-72 hours in early pregnancy. However, it's important to note that high levels of beta hCG alone cannot confirm a twin pregnancy. Other factors such as ultrasound scans and symptoms can provide more accurate information. If you suspect you might be carrying twins, it is recommended to consult with your healthcare provider for further evaluation and confirmation through appropriate diagnostic tests.