Trying to conceive

Brittany • I am 26 and my husband is 28. Newly married in may 2015. I am a special education teacher and my husband works with lawn care.
My husband and I are trying to conceive our own child since we got married in may. I have two children from a previous relationship and he has 3. I stopped my depo in July got my period October 5-12th. Now I haven't gotten it this month. Could it just be irregular yet?