Can a period be late even if I ovulated?

Mo

I ovulated on 15th August. (A day earlier than predicted) we had live sex on 10th. Then some more on 13/14 with condoms. And abstained some days. (Goal was to not get pregnant). Since usually my cycle is consistent, we thought we were safe on 10th.

Anyway. 33 days into my cycle and still no period. Usually my Cycle is 28 or 29 days max and consistent. I know I ovulated because I get ovulation cramps.

Have been stressed with work past 3 weeks which let to limited sleep as I would work late into the night at home. I read stress can stop ovulation and therefore lead to late period but I ovulated. So shouldn’t my period come? I don’t want to be pregnant right now as am still breastfeeding my baby and I am not ready for another child. Has this ever happened to anyone and period finally came? My period returned last year and has been stable for 8 months. But I don’t know if maybe me increasing the breastfeeding has messed up my cycle again. My toddler has been sick.

Can I use my ovulation tests from ttc 2 years ago to test if am pregnant? I have no pregnancy test on hand and I won’t be able to get one until Monday.