Could I be pregnant again?

Okay so my period came back 2 months postpartum and has been fairly regular ever since only a day or two off at most. Now at 8 months pp my period is a full week late. Me and hubby have been active but using condoms every single time with no breaking that we could tell. I'm panicking a bit because it doesn't seem likely given us using protection but also its not typical for my period to be this late. Hes bringing home a test on his way home from work to ease my anxiety but in the meantime what do you guys think?