Long time pill taker but new to sex

Hey, I've been on the pill for 2 years now because I was having horrible periods but I also suffered for serious IBS so they would be clash! Since then I've have no bleeding or spotting at all, which I suppose is a good thing but means that the only signs are wanting naughty food, when other female members of my family are on and mood swings. I starting having sex for the first time last weekend so I really want to keep on top of things and not let naivety put me and my boyfriend in awkward situations. I will get protection though. So any tips or advice from those of you who have had the same or similar experiences I would be grateful!