Nervous wreck

Going to the ob in about a hour. I'm nervous as all get out. I've been bleeding for 13 days, whether it be spotting or heavy bleeding, it's been going on for 13 days. This cycle was 16 days from the last one. Doing an ultrasound today to find out what the hell is going on. Also going to find out what other options we have besides clomid. Had some really bad side effects from it and I refuse to go back on it. We've been trying for almost 16 months to get pregnant and it hasn't happened yet.