Unsure🤷‍♀️ need your thoughts

So went off BC in July 2017 have had pretty regular cycles since between 30-33. Last month extremely stressed cycle was 36 days long this month my husband and I decide to start TTC my cycle is now at 41 days (not stressed at all this month) and multiple BFN’s 2 different brands even

Today i get home from work and have (I think) started my period BUT it’s only a small small amount after going pee it’s been a few hours and still nothing more than a trickle nothing on my pad even

When every other period I’ve ever had I start more like this

Have had crazy nausea for a couple weeks even woke up from a dead sleep a week ago middle of night to run to washroom to throw up (but never did).

Anyways what do you all think? I’m leaning towards not pregnant because of the BFN’s of course.... however what’s up with the 41 days cycle???? I have a doctors appointment scheduled for Monday