chances of pregnancy while nursing and using condoms

hi..i had a baby 6 months ago.im still nursing her but i also give her one top feed and she is having semi solids as well.i was having regular periods for the past 6 months but this month i havent gotten them. My due date was the 5th and its the 15th n still no signs of periods..could i possibly be pregnant?me and my husband have an active sex life but we always use condoms.I have always had very regular cycle...

Breast feeding can sometimes cause late, missed, or no periods at all..If you are using protection, then it is not likly that you are pregnant..Period also can be missed or delayed due to other problems as well, You could see your obgyn and discuss this with her, maybe even have a check up to see if everything is normal..Congradulations on your new baby....