Afraid to be disappointed......

Stefanie
So my husband and I are trying to conceive and according to that app it says I am more than 20 days late for my period now I know that sounds like a lot but considering my period is irregular it is not a shocker that I could have one of my long. Right now I'm on cycle day 70 the longest I've ever went was 78 days I'm feeling a lot of back pain my lower back I wake up nauseous and I have a little bit of cramps in my abdomen but it doesn't feel like period cramps I'm wondering if anybody has experienced something like this and is there any chance I could be pregnant don't want to test now for fear of disappointment but this is really long cycle and its getting my hopes up