Determining ovulation

37 trying to conceive. Only had one pregnancy and he Is soon to be 13 year old! It was a surprise pregnancy with him and this whole trying to conceive planning is all new. My cycles range from 23-26 days. This is our second month trying and we had sex the 25th and 29th with expected ovulation the 30th. The only thing I have been noticing the past cycles that may indicate ovulation is sharper pains on right or left pelvic area. Any tips you can give me would be great! Scary to think after 14 years I’m not even sure if I can get pregnant. My expected period is to come next Friday when can I take a test? They are checking my progesterone levels tomorrow morning to assure that I am ovulating since it has been so long.