TTC #2

Hubby and I have only been TTC a few months now ( 6-8 months) but have never used contraception since our first born, just used the "pull out" method and normally my AF is pretty regular mind a day or so. Ever since we decided to try, AF has decided to be difficult. I was late a week on our first month of trying, last month (I skipped August all together) I was 4 weeks late ( mind you I was planning a wedding and a little stressed, so I put it down stress) now I am a week late tomorrow and no sign of her, I have VERY sore nipples, and no other signs of pregnancy and rested last week ( which came up negative) so frustrating trying to time everything but my body has decided to not corporate !! Any body else in the same boat ??????