I had my son in April and I had my first period in July but my periods where all over the place, I had them twice in the one month. Just give your body time to get over the birth.
You should have about 4-6 weeks of postpartum bleeding before you begin a regular cycle. Usually a period should come about 10 weeks after delivery. A major factor would be whether or not you are breastfeeding. If you are nursing full time (without supplements) you will most likely not experience menustration for about 6 months or longer.
Be careful if you are breastfeeding. Many people say you won't ovulate and therefore won't get your period for months. When my daughter was 8 weeks my milk supply disappeared even though I was feeding what seemed to be around the clock. 4 weeks later I got what I thought was a very heavy period, but after 2 weeks of bleeding, discovered was actuall a miscarriage.
You can get pregnant before you get your period, even if you are very safe!
I would talk to your doctor because everyone's body is different and one woman's experience doesn't mirror the next.
my first I had my period by 6 weeks, my second at 12 months and my 3rd at 11 months.. and yep you can get pregnanat while nuring.. I did! People always think its birth control while in reality is only a fairly effective method in the first 6 months and only if baby id EXCLUSIVLY nursed on demand (no solids, no bottles, no pacifier, no scheduled feedings or cry it out methods used, etc...)