Should I take a test or wait?

My husband and I have started tracking my ovulation to not get pregnant (yet). I had the merina IUD after both of our kids were born but last November it shifted and had to be surgically removed I. January. Long story short, I hadn't had a period in 5ish years so we decided to go the family planning, use condoms route instead of a new IUD or other birth control because we are "almost ready" to try for a third. So, my cycle is not super normal still. Glow is helping but my predicted period START of my period was 5 days ago (the 13th) and I have zero sign of spotting. We had unprotected sex the day before my predicted period. I had cramps friday/Saturday and agian this morning. I have been nauseous for two mornings but I just got over a cold so idk if its related or not.

My cycle has been between 29 and 31 days. Is it too early to test?