Where's my HCG going?!

Hailey

Okay so I'm panicking a little the first test was around 4 weeks Prego (Middle one) the second was around 8 weeks (first one) they were both dark I've been having bleeding off and on throughout my pregnancy Everyone keeps telling me it's normal the last test was taken today at the WIC office... At 11 weeks and 4 days... Why is it so light?! Could it be cause it's a different test type am I freaking for no reason?!