2wl npt

I have a son who will be 4 years old next month... My husband and I have been trying to conceive since our miscarriage on Memorial Day 2015. It wasn't our first, we had one while we were dating and we had one in Februaury 2013, that one really messed me up. My husband told me some one had to be watching over our son and really wanted him to be here.... So when I had the mc last year, I haven't been the same every time I get my period I'm upset and when I don't get it, I get let down.. They said it takes a couple of months for my cycle to get bad to normal, but it still isn't? I had an ultrasound done in late October and right after it I bled for about 3 days, nothing serious and not constant. Then I didn't get it in November and I got it in December. Now I'm 2 weeks late? But on top of that I'm nauseous constantly and I even spent yesterday dry heaving. My nipples are super sensitive and my stomach is bloated out to wear I can't suck it in :/ the thought of some foods makes me sick to my stomach. I'm tired. It wasn't even like that last year... I took a test today and it said negative... But with my son, every time I took a test it was negative until I went to the OB. Last year I got a BFP at home test... I feel like my husband has given up on getting his hopes up. And I tell myself not to worry about it, but it's harder than it seems. I don't want to get my hopes up again just to be told I'm not and I'm left looking crazy. I guess I just need some positive vibes? ❤️