hi everyone im new on here just looking for some tips and advice im finding it really hard to track…

hi everyone im new on here just looking for some tips and advice im finding it really hard to track my ovulation im just to confused . according to an app im 12dpo already but did ovulation test on off chance and was a strong positive today. and my last period wasnt normal it was still 5 days but really light spotting aand also had spotting 12th and 13th last month and for 30 mins on the 15th of this month. what is going on wivmy body im only trying to concieve baby number 2 x