Period early? Time to try Clomid?

I had a very light period 2 weeks ago. Woke up this morning and it looks like I'm starting my period again! What the heck? First, I've having periods every other month since coming off birth control. Now I'm having a period every 2 weeks? I'm sooo confused! I think I will need to take my doctor's advice and go on Clomid. So frustrating :'( I'm just scared to go on Clomid because I read that it could cause miscarriages and that you can only take it for 6 months which makes me feel like it isn't safe.