I have been off birth control for 5 months now. My cycles started off super long and have been getting shorter and shorter. My last cycle was 34 days. I am on day 36 and still no period. I have been feeling nauseated after eating for the last two weeks. My boobs don't necessarily hurt, my nipples are a bit tender, I've been having hot flashes which is something I've not experienced before. I did a cervical check, its high, closed, but I can't tell if its firm or squishy. All home pregnancy tests have been negative. I took one the day before my period was supposed to come, and then again the day after it was supposed to come. I'm also very moody, very short tempered lately, which also isn't like me. Any ideas?