Nausea only in 2nd trimester?

Anyone else get pretty lucky with their first trimester not having any nausea, only to get hit with it in their second? I'm 14w now and for the past few weeks get nausea/stomach aches occasionally. I've only thrown up once so far and one other episode of dry heaving, but it's usually just a stomach ache, not really an urge to vomit. I just haven't seen anyone mention nausea in the 2nd tri who didn't also have it in their 1st.