TTC, period is 2 days late but negative pregnancy test :(

Hello ladies. As it says above, I am two days late as of now. We've been trying for the past 8 months, got pregnant about 4-5 months ago, but miscarried. I tested late last night with the clear blue digital test and I got a negative result. I woke up this morning feeling wet "down there." I got up in a panic, thinking I started my period, but nothing. It was just a clear discharge (sorry for TMI). I had sex during ovulation, but I'm scared to use my second test yet. Any advice?