Af showed late but ill just keep going..

Had iud kyleena out Feb 21st..usually always start 27th and she ended up showing the 22nd day after removal and was told that is a period not withdrawal bleeding cause it was heavy, lasted 6 days and was close to when I was due so fast forward to now and I have many symptoms before af decided to come March 31st cause according to glow she was due 22nd then I thought maybe she was coming on the 27th but long story short she arrived but I'm so confused cause it says I ovulate 6 days after this current cycle and u can see how long it took after last cycle..any ideas why!