Question about ovulation

So I was looking over my chart and notices I ovulate on different cycle days last month I got a positive on cycle day 19 another month on cycle day 17 this month I haven't had time to get a test but glow got me down for cycle day 14 um irregular i was normally on for 7 days but now it's 3 something 4 sometimes the third day I think um off then the 4 nothing then the fifth day um bleeding them um off so crazy I have a Lil boy but want more kids um on thyroid for the rest of my life I was taking 112 but they went down to 100 said I was getting to much in me please if anyone can give a good advice with out judgment I would love to talk more about it i know no one on here a doctor but just need someone to talk to and hear me out thanks