Opinions

Ok. So I'm on the Nuvaring for birth control. Last month I placed it on the 23jan( which was day 7 of my cycle) instead of day 5 like it says. I know that makes it less effective. I was fertile from 26jan to 1feb. I was intimate several times throughout that week. I've been having sort of strange. Symptoms. I had a headache on the right side of my head for 4 days and it's still not completely gone away, I have been craving mcdonalds chicken nuggets( I don't ever eat mcdonalds) and I've thrown up a few times. I'm also gaging a lot. My ring is still in and I just wanted to gather opinions before I take it out and see if I start. Does anyone have a similar story? Do any of you ladies suspect a pregnancy?