Update on positive and then negative tests

Ok so went for blood test still awaiting results even tho I am starting to think it might be negative...so let's start from the beginning maybe someone can help me work it out...maybe there might still be a light at the end....so my last period was the 22/12/2016 we had intercourse the 4th Jan 2017 the 8th and I think the 20th 2017....on the 6th I had bleeding and I think that might of been ovulation bleeding and then on the 22/01/2017 I also had little blood once when I wiped...my period was due on the 21st I think...my cycle days are 30days??does it make sense??pleas help