Need help

Maria • TTC #2 since July 2012. IVF/icsi 1- negative FET#1 positive, mc 10w. FET #2 positive! Hoping everything goes well!
So last Wednesday I logged a miscarriage. I went to my doctors and the said blighted ovum. But I had a follow up today and there is a baby in there with a heartbeat. Now I tried to switch glow <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> back with my due date and it's won't let me saying the date clashes with a previous due date entered. Can anyone fix this for me?