It’s a common misconception that you might get a false negative pregnancy test if you’re pregnant with twins. However, the truth is that pregnancy tests work by detecting the presence of the hormone human chorionic gonadotropin (hCG) in your urine or blood, and this hormone level doubles every 48 to 72 hours in the early weeks of pregnancy. So, if you are pregnant with twins, your hCG levels will be higher, and you are more likely to get a positive pregnancy test result sooner. However, if you take a pregnancy test too early, you might get a false negative result, regardless of whether you’re having twins or not. If you’re experiencing signs you’re having twins , such as severe morning sickness or a larger-than-normal belly, you should talk to your healthcare provider to confirm your pregnancy status and discuss any concerns.