Am I really pregnant?

So, me and my husband have been trying to get pregnant, but I've misscarried once already. I'm a little bit concerned. I am late on my period, and I've already taken two pregnancy tests. The first one was before I was late on my period, which I'm not completely sure was a positive or a negative. It had the test line, but the other line was so faint it was almost not there. I waited a few more days until my period was supposed to be due, and took another one, and this time it came up negative. I took the second one in the middle of the day, so maybe I just need to wait till the morning to take it?? So what do yall think is going on? I haven't gotten my period, and I've got both a positive and a negative test. Should I just wait a day and take another one? We are really hoping for it this time. Thanks for yall's imput.