Out?!?

💗Pinkie💗 • Mommy of a 14yr old a 6 yr old and 2 yr old twins

3 days late multi neg. and I keep not trying to get in my head about it but -sigh- it's hard. I think I ovulated late around the 27-28th so you think that pushed my period back? If I'm not? And if so when should I be testing?