I saw a doctor that isn't my doctor about 2 months ago and she prescribed prometrium due to my short lp. I o around day 19-20 of a 28-29 cycle. She clearly didn't know what she was talking about and told me to start it on day 14...so I did but then after taking it for a few days realized it can stop o so I stopped it. This will be my first "real" month on it. I don't temp (have tried but I don't sleep well with a toddler in the house so it just didn't work) I got my first positive opk on Friday (Chriatmas) so 3 days ago. When should I start taking it?
TIA!
TIA!