Am i pregnant?

Irregular po peariod q.last means ko po ay may6.....45day cycle q...dapat last june 20 expected na magkaroon aq...pro until now himdi pa aq dinatnan...tapos nag pt aq june 20 negative po....pro palagi masakit ulo q...dn para bang ayaw q sa amoy ng asawa ko...pls po pahelp..#pregnancy#advicepls