breastfeeding/pregnancy

If you have EW CM that means 100% you’re ovulating right? Cause I’ve been to my Dr recently and I told him I am still breastfeeding my 14 MO but I want to try for another baby and my period came back at 9 months, and he said which cycle day am I on and I told him 10th and the apps I am using said 4 days until ovulation but he said he doesn’t see it happening in 4 days (he did an ultrasound). I just want to say since my period came back it was regular and I had Ew cm every cycle. Hope is not confusing and get some feedbacks . THANK YOU IA✨