Hi,I'm trying to conceive my next period is due on the 4/6 however I feel heavy at the bottom of my stomach,nipples abit dark,and a little bit ov nauses.I have a thiriod problem had 2 operations done for that I have a son who is now 6 years old,my qusetion is can I be already pregnant at this stage and is it to early to do a pregnancy test.last day of intercourse was the 10/5