Hello, Me and my partner had have unprotected sex in Mid july.. since then she is having some harmonal disbalance and having some symptoms like feeling tired,sleepy,dizzy, constipation, severe headaches whole day of pregnancy. But since then she had her two periods although they were late about 5-6 days. So, I want to know is it possible to have periods while pregnancy..?? Because I have read that it is not possible to have periods while being pregnant...! Pls just confirm me if it is possible..