Am I stressing over nothing?

Amanda
I had a baby almost 2 years ago and have had my period back for about a year, it seems to be leveling out as far as flow and space between, longer, like 36ish days (was 33 before I got pregnant) and it only last like 2 days and is not heavy at all, never was super heavy but I used 2 tampons and a pad this last time (whole period). About 2 weeks ago. I'm married and we are active 2 to 3 times a week, we use condoms when I'm anywhere close to ovulating but not the week after my period or the week before. I've had a lot of pregnancy symptoms the last couple of months like nausea, fatigue, wired apatite, and wired poop. I'm remembering dreams more than I ever have too. 
It's probably just stress or something, but I'm just wondering if maybe it's pregnancy or even something else all together?