If I do not know the exact date I ovulated but my BBT shows that I did ovulate like my temp went up and has been staying around that area when should I start testing? I know that I have missed a lot of days but on those days I had bad sleep and I couldn't temp because of that or also

my son would wake me up and I would jump out of bed and do what I had to do and would forget to temp if someone could please give me a little advice I would really appreciate it I'm new to this still