I did nt have that. If it helps on my first go, I had low until cycle day 11 whichwas then high from cd12 up until cd18, I then had my peak on cd19 and back to low on cd 20. I also had cycles of an average 29 days. Peaking on cd 19 was much later than my standard poas ovulation tests showed me and when I thought I was ovulating. I did read that sometimes in your first month it does use that month to almost get used to you and your cycle, and to not worry. Check the book and cbfm web site has a help page that I used alot! sorry I cant be more help.