hiya
it can be quite nerving if you have been trying to get pregnant i know as my husband and i were in the same position that you are, the little bit of advice that might come helpful to you is that if the second test comes back negative like the first i would suggest waiting 15 days b4 taking another one, as sometimes the tests do not recognize the hcg levels in your body when you are pregnant until 15 days after a missed period
good luck to the both of you