I'm on the depo shot. I have two kids and I have took five pregnancy test and four of them has came back positive. I went to a free clinic and took another but it came back negative. I really need to know what to do can you please help me?

If these were all urine tests, I would see about having a blood test done.

When you did the tests at home, did you follow the directions exactly? Testing in the morning is considered the best time and making sure you read the results no later than what is stated on the test as this can sometimes lead to the result looking like a light positive.

It is also possible for a very early pregnancy to not take, thus having a positive result at first but a negative one later.