I'm pretty sure im pregnant again,ive had three already.with my first i didnt find out till i was 3 months,i knew for two just nothing showed up.my second i knew when it happened.my third i knew,nothing was showing up for two months.according to this I would be three weeks 2 days..I took tests last week but nothing showed, I know take more or get blood done.i have all the syptoms and that gut feeling.my fiance and i werent trying but we werent preventing it either.he didnt think he could have kids.i have a 3yr old(nov) a 2yr old(oct) and 3 month old(05/2015)..any one else have trouble for some reason it taking so long to show or anything?i have the nausua,heartburn,headaches,mood changes,breast tenderness,the darkness and everything.just feeling lost i guess