To BBT or not?

I am needing some feedback. I am a worrier and I am trying to decide if I should continue to track my BBT and take the OPK’s. My BBT chart doesn’t indicate ovulation but by using the OPK I know when my peak was. I am 32 and trying for baby #2. I have a 10 year old and my husband and I got married in November and are hoping to add to our family. I’ve always heard that stressing too much can make it harder to conceive.