Irregular cycle

Nikki • Married and have a 4 year old boy and a 1 year old girl

I have a question so I have been trying to convince agine the first I was not really trying and my pirod is so irregular idk how to track when I am ovulating when I use this app it’s usually a couple days off but last month I didn’t have one for a hole month and then this week i been spotting for 3 days and yesterday nothing and today full on pirod. What can I do I beat my self up every month I just want one more baby. ☹️