I forget that about feb. I usually run 28 day. I am 32. And I do know of failures or tubals. Mine were cut and burned too. I will see in a couple of days.
I don't want to alarm you bot there is a failure rate with tubal ligation and I have heard of a few pregnancies after a tubal.
It is probably the shock to the body of withdrawals,but check it out.
I don't know how many you took per day or how old you are...but,I'm thinking February was 3 days short of a month so if you count that way maybe you' ll be right on time. In other words,give it a day or two.
Vicki :)