What's going on with my body?!

Jasmine
I have know been on my period for 2 full weeks with 3 days Inbetween where I seemed to go off a little. My cycle usually lasts about 4 days 😢 the app isn't changing where it says im going to be fertile, I think its confused aswel! 
This is my last month after 5 months of trying as my husband is deploying! I really thought it was going happen much sooner as our first child happened first try! 😢