Multiples?!?!

My period isn’t due for 8 more days, I expected this to still be very negative but the test line is so dark. I have very regular periods so I know the dates are correct.. I should be 3w3d. Thoughts?

We’re happy regardless but it seems early for such a positive test, I have an ultrasound on the 12th. Estimated due date is May 12th 2025