Am I pregnant..?

So I’ve read a lot of cases where a girl can be pregnant and not know it, and tbh it’s been kinda bothering me..

I’ve taken a few cheap dollar tests and they all came out neg but I’ve read cases where it could come up BFN and still be pregnant.

So here’s the story: I had a MC a few months ago in August perhaps..? It was an early MC about a week into a BFP and missed AF.

Next month got AF everything was normal. The month after I did da deed twice while ovulating, u know.. fell asleep in da nude and all afterwards (so romantic haha). He came inside me twice and all that jazz..

Anyways, next month 5 days late AF but BFN.. month after, 10 days late, two day AF, still BFN. I would be 12 weeks right now if I am actually preggs. I’m wondering if it could still be a possibility even if I took 5 tests that came out neg? Should I test again perhaps just in case..? Could it possibly be twins? I’m kinda nervous. My brother and sister are twins.

Haven’t rly had any symptoms much, I look a lil bigger but I blame my eating habits. I did feel some pulling and twinges in there the first month and figured it was just AF cramps. Also my left boob kinda has some random pain, idk.

Not nauseous or anything, but kept smelling baby powder randomly at some point. Also I feel some bubbly type feeling in there? idk man.

Is it all in my head? Wishful thinking perhaps? Anyone else have this situation happen and end up being pregnant? What should I do..?