I have a 6 1/2 month old son. I breastfed my son for 3 months. Last month around this time I got my first period since giving birth. Now this month I have not had a period yet. *(3-5 days late) I have not had sex since giving birth and currently am not taking birth control pills. Is this something to be concerned about or is it normal?
This is my second child and with the first I started birth control pills at 6 weeks after birth. Any guidance or insight would be greatly appreciated.

When you breast fed you might not get one (or a steady regular one) for quit a while. You can still get pregnant though. I breast fed my first baby for over a year without one and ended up pregnant with my second.
Breast feeding is good for losing the baby fat stomach too. I was down to a size 3 from a 7 by the time I got pregnant the second time. I didn't get to breast fed my others and ended up with a stomach that I referred to as my baby fat.