It can be confusing and frustrating when you receive conflicting results from different pregnancy tests. In this case, the transvaginal ultrasound (TVS) conducted at 7 days past ovulation (DPO) is considered more accurate in confirming conception compared to a home pregnancy test (PT). Home PTs detect the presence of hCG hormone in your urine, which may not be present in detectable levels until later in the pregnancy. It's possible that the hCG levels were still too low for the home PT to detect at 11 DPO.
If you're unsure about the results, it's best to consult with your healthcare provider who can perform a blood test to measure your hCG levels accurately. Blood tests are more sensitive and can provide a clearer picture of whether or not you're pregnant.
Additionally, keep in mind that implantation can occur between 6-12 DPO, so taking another home PT after a few more days may yield different results. Some women may experience delayed implantation or slower hCG production, leading to false-negative results on early home PTs.
Remember that every woman's body is unique, and individual experiences with conception and pregnancy tests can vary. If you're trying to conceive and suspect you might be pregnant despite the negative result, it's always best to seek guidance from your healthcare provider for further evaluation and advice.