Hi everyone. So I’m thinking about ringing the doctors because I’ve had 3 periods with only a 20 day cycle length. I had one period where is was 37 days, normally I’m 26 days then after being a week late my last 3 have only had 20/21 day cycle. I’m 37 year old and just wondering if anyone else has had this happen? I’m now around the 18 days now so was waiting to see if I have another short length cycle and if I do will ring the doctors for advice but just thought I’d see if anyone else has had this and what caused it. Thank you in advance.