I need help ladies..

So i had a mc june 29 2014...i was around 6 weeks...since than my period is all over the freaking place...my glow said my AF was due yeaterday....and last month i got it november 25 2014 and lasted 4 days...i took pregnancy test and its all negative...i even tested using morning urine and still negative....we are trying for #2...we have 2 year old boy...any advice or simalar issues...thanks ladies.