I had my last period on 29th Feb, I usually have a 35 day cycle. Me and my husband starting trying to conceive on 18th March and I'm still waiting for my period. I've taken various tests and they all come up negative - the last 3 or 4 days I've felt really bloated and gassy and literally cannot stop eating! Just obsessed with anything sweet! ... We've only just started trying so I know I can't get my hopes up too much but I'm getting so down and frustrated with the not knowing! My question is when do I 100% take a negative test result as a true negative ... Haven't taken one since last Saturday as I just don't want to be disappointed again. Has anyone had a similar experience?