Hey I was on the pill and I gave it up mid pack 21 days ago because I didn't get a period for about 2 months. I had sex 4 days later unprotected, I still have no period but I had period like cramps a couple of days ago. Also last week I woke up one morning and out of no where I got a hot flush and then just vomited and I was fine after. I did have a sick kind of feeling in my throat for a couple of days but I don't no if that was just nerves. My chest isn't sore but my nipples are. Every other time I gave up the pill I usually got my period a few days later. I took a hpt 15 days after I had sex but it was negative. I'm 22 and I'm not overweight or underweight. Any info much appreciated