Late period

Hi ladies!

So I have missed my period by about 17 days I should have had it on the 15th and nothing, I have taken tests and they all say negative. Could I be pregnant or is my body just getting rid of the hormones from my birth control btw I took it out almost 2 months ago. If I'm pregnant I'm happy for the news but I don't know should I go get my blood drawn to make sure that I am or not pregnant?

Thanks in advance!

**pic for attention**