Has anyone had experience with clearblue digital going up and down? Had my first 2-3 weeks on Sunday 12th 4 weeks 1 day. Then had a bad feeling this morning done another and it was 1-2 weeks then second urine of the day went back up to 2-3 weeks. I've had 4 miscarriages previously which happen the same time every time and I've never reached 2/3 on clearblue. I've read a few people say they can be unreliable but i think my hcg is dropping which is giving the result