What should I do

My last period was Dec 28 -jan2, I was having regular periods but they stopped I have pcos and diabetes. I had unprotected sex on Feb 10th and 14th and just started feeling really nauseous and having sugar drops since yesterday which is weird because my sugar is always high. I don't know when or if I ovulated and also don't know if it's too soon to test. What should I do?