Ovulation

It's only just clicked that the regular pain I felt when I was younger was ovulation pain, however since starting cerazette seems to have stopped. I get a period about every 3 months, I'm guessing this means I'm still ovulating? Since I no longer feel the pains, how would I know when I ovulate? My period tracks app says it's towards the end of my cycle but wouldn't it be nearer the middle? I'm confused and my cycles have been all over the place since starting cerazette and since it's the only contraception we use, I wish I had an idea of when I ovulate, if at all! Anyone else on cerazette or have any tell tale signs of ovulation? x

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I think Cerazette is supposed to prevent ovulation I think xxx

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That's what I thought which was why I was confused I get a period every once in a while!