Worried I’m not ovulating

I have been testing for ovulation for this cycle after a bizarre mid cycle bleed last cycle. I’ve been pregnant 5 times before although have lost them all so don’t normally have a problem getting pregnant, just keeping it. So I must have been ovulating but now I’m not so sure. I’ve been pregnant within 2 months every other time but not this time. It doesn’t seem to have changed in 5 days. Is this normal? maybe I will ovulate later but I’m surprised it’s not really changing.