I was told there was a high chance of not getting pregnant without help

I was told there was a high chance of not getting pregnant without help. I was getting my period like 2-3 times every other month too! So I downloaded this app to help track my periods and figure things out. Like clockwork, my period would start everytime this app told me it would and sometimes more often. This month I was 11 days late and decided to get a test this morning I did it twice and I'm pregnant! I'm so nervous and scared and happy I'm so grateful and so was my boyfriend he is so supportive and happy and excited too! :)