i have never had a normal menstrual cycle. when i was 22?

i have never had a normal menstrual cycle. when i was 22?-i went on birth control so that i would have regular cycles. i also was in a relationship and wanted to know that there would be no risk of getting pregnant. but a few monthes into the pill, i got pregnant and had my daughter. for the past two years, i have had two periods, the last one being a year and a half ago. but i have been having strange sensations lately. my nipples are sore and i feel that fluttering in my lower abdomen. tonight, i took a test and it is positive, but i'm confused. if i never had a period, how did i get pregnant. i thought that if i wasn't having periods, i wasn't ovulating and therefore, couldn't get pregnant. please explain this to me.

 

Update: and if i'm feeling the fluttering, how far along am i? a month or two ago i felt sick to my stomach a few times, but it passed a while ago? could i be far along and not have known it?

 

  I'm not a doctor or nurse, and I really don't understand your cycle either, but usually when you start to feel fluttering that is about around the 4th month. You know some women have gone through their entire pregnancy without knowing about it and ended up at the hospital with stomach cramps only to find out that they were in labor, I do feel sorry for you though, I think your doctor has dropped the ball in your case though, with making sure the pill he prescribed was what you needed and followed up and made sure everything was as it should be, maybe you can ask him if he is going to support the 2 children you now have because of the "help" he has given you. I would date your pregnancy around the 4th month though, I was told and it worked for me and my children, that if you kept track of the first time you felt your baby move, count 5 months ahead to the day, that would be the day you would deliver, 2 out of 3 of my children were right on that schedule. Hopefully someone else can explain the rest to you. Good Luck