HELP?! I have no clue

So there’s a definite chance I’m pregnant. No plan b used. So it’s been 19 days since intercourse. I took a test 2 days ago and I got a faint line that like everyone said was +. I got a spot of light brown for one day 3-4 days ago that was in watery discharge. Almost like the pic I’m showing below. This is today’s. I tested again this morning and there was no line at all! My periods are usually irregular but the past 4 months my cycle is around 35 days. I’m on day 32 rn. Could this just be my period coming. This is the only spotting I’ve had and I’ve been nauseous, bloated, and had so much pressure/ not completely like cramps in my uterus.