Nervous to get my hopes up

Ok so I'm late I think and hope! We've been TTC for 2 years on and off but more seriously since we got married in May. I had a blood test at the doctors last month to see if I ovulate but they couldn't tell as the test might not have been done on the right day, my husband also had a sperm test but that was also inconclusive and he has to have it again in 3 months, not sure why. My cycle lengths have varied since - 28, 26, 29, 27, 26, 26, 29, 24 and last month was 25, my last period was on 6th December 2014 which if I count correctly is 31 days today! Now I've previously been late, well what I thought was late but as soon as I start thinking about taking a test I get my period :o( We want this so bad but I'm very afraid to even think more into this, we haven't been overly trying this past month but i suppose it only takes once. Does anyone have any thoughts or advice?