TTC 23 year old female

Christina
So I stopped my nuvaring 2/4/16 got my period 5-8. My ovulation week was the 14-20th of this month. Had sex before during and after the peak. 
My sex drive was so high during this week, and my bf sex drive was really high also. Maybe one day after ovulation I began feeling cramps, slight ones kinda by my stomach. 2nd day after ovulation more cramps, mood changes and hunger. Now it's been 4 days since "conception/ovulation" and I'm burping, TMI but throwing up a little bit in my mouth each time. Experiencing heat flashes, and some nausea. 
Also I feel so connected to my bf now, like laying with him, sleeping with him never felt so good. I just feel different, more calm more positive less worrisome than usual.
I feel like I may be psyching myself out, so I need some reassurance. 
Someone give me words to help lols