I breastfeed my 1 year old son twice during the night, I had a very light period when I made the change from frequent feeding to just the once/twice. My husband and i have had unprotected sex twice, last time was last week, but in the last couple of days my stomach has been achy and cramp like. I can't remember the begining of my last pregnancy as i was in denial. The funny thing is, i had no interest in sex what-so-ever beforehand and now i want to jump at the chance when possible.