Hey, didn't want to leave you hanging! I also had an MMC in November and am now pregnant again. Before my first proper period after my cycle I did feel pregnant again, but I wasn't, and I think your hormones can be a bit loopy for a while.
I'm sure some people will disagree with me, but generally speaking early pregnancy symptoms and PMS symptoms feel really similar because at the start they're caused by the same hormone rising - mainly progesterone. Progesterone can make you more emotional, give you aching breasts, make you constipated etc. hCG kicks in if you're pregnant and they think that's what can give you sickness if you're going to get it.
I've always felt like if you haven't got enough hCG in your system to show on a test you haven't got enough to give you real pregnancy symptoms, but I know people who 'just knew' and felt sick very early, so it's possible. You could be one of those people, but I wasn't either time I got pregnant.
For me, I was bloated from ovulation, and that still hasn't gone away (I'm 10 weeks), with sickness and other symptoms kicking in around 6 or 7 weeks.
Anyway, wishing you lots of luck. Hope you get your BFP soon, and reach out if you feel like you need a chat!