Ugh!! 2 weeks is soo long! (Rant/whine)

I have been on a roller coaster! I am struggling with not wanting to over analyze every little symptom (is that almost daily naseau a pregnancy symptom?! Or due to this weird sinus thing? Is the sinus thing a pregnancy symptom?! Why is my hair greasy? What is going on with bbt chart... Is that normal? Why didn't I start charting sooner?!) and it is unhelpful that twice in the last two weeks my 6 year old step son has 1) rubbed my belly and told me he thinks I am going to have a baby soon and 2) asked me point blank when his new sister was going to be born! We haven't even talked to our kids about starting to try because they are 4 and 6 and if it takes a while they won't understand that. Plus I have a history of miscarriages so we won't tell them u till we are SURE we are going to have a baby.