Honestly.... I think these apps are full of shit! Our bodies are different! Two women with a 28 day cycle will not both ovulate on day 14... Hell, I actually have a 28 day cycle with a 3 day period and I NEVER ovulate on day 14. This is stressful af! Every time my period comes on I throw away all of my vitamins because I feel like the doctors give general answers to everything and it’s a bit frustrating! TTC can become draining, mentally and emotionally!