Nervous.....

My husband and I each have 2 kids from our first marriage I'm 33. We are TTC our first child. It's been a year. Nothing but bfn. I bought my first opk today. I'm nervous it's going to tell me I'm broken. Ladies in my family have issues in their 30's ( my mom and aunt both had hysterectomies by 35) am I worried for nothing? Doctors say I'm healthy no issues. But so we're they until it had to come out. I had 2 kids in 2 years with my ex are we less compatible? Do I need to take a breath relax? Thanks for letting me vent