Late Period???

Hannah • Baby boy born 10/12/18 👶🏻💙

So in May I got my period back and it was the 4 days. Well I didn’t get it in June and I’ve been cramping and Nauseous for like 2 weeks. My husband and I haven’t been using condoms but I’ve peed on 4 different tests and they all say not pregnant. So am I testing too soon or do you think it will just show up one day?