I don't think I ovulated like normal this month

My body has been on track for forever. Well at least so I thought. Like clockwork about two days before my expected ovulation date I've gotten the egg white CM. It never misses a beat. Well now that my husband and I decided to try for baby #3 two months ago, this month I never had any sort of change in my CM. It's pretty much been nonexistent this month. I was supposed to ovulate on the 2nd. Since it's only been 2 months I haven't spent money on OPKs but after this month I'm starting to get concerned. I just turned 35 and I'm starting to think we may have waited to long to extend our family