Anyone have a negative then a positive test days later?!

I took a first response early detection test on Monday 1/4 when I was (10 or) 11 dpo and it was negative. Today I am (12 or) 13 dpo and glow says I can take another test, should I continue to wait? My period shouldn't start until 1/9. This was my first cycle using clomid and I did ovulate. I am so nervous. Has anyone had a negative test around cycle day 10-11 then a positive later on?