Missed period...bfn...no fertile week this month?

Lindy • Happily married since Dec 2012. TTC #1 since Feb 2014. Found out on 6/13/14 that I am due 2/15/15. We are overjoyed!
So I am 2 months off the pill...period last month, not this month. And so when I deleted the period for April, it pushed my fertile week all the way out to May 20th?? Does that make sense to anyone? :/