Scared of genetics


So we just got married a little over a month ago and decided before hand we would start trying for kids immediately. We were engaged and loving together for 3 yrs prior to marriage and are both over thirty so didn’t want to wait. However I’m terrified that we won’t be able to conceive. It took his parents 10yrs of trying before they got pregnant. My parents got preggo the first month they tried. I’m scared to tell him that I’m worried, I have no idea why it took his parents so long, idk of fertility dr was a think in the 80’s and they are very much of the “it’ll happen on gods time” type. Idk if I should have an appt with my OB just to make sure things are good or give it awhile and see what happens. My little sister got preggo while on birth control, so I’m hoping my family’s high fertility will put weight any low fertility on his side.