Trying to Get Pregnant...

Hello, I'm totally new to this. Trying to get pregnant, this app, the terms that are used here, everything. We started trying on Thursday April 25th, then again on the 27th and 28th. My problem is that I'm spotting. Not a lot and it's just a light brown. Tonight I feel slightly bloated. My ovulation day was the 28th and I believe it would be too early to expect symptoms. I have been trying to stay calm and not overthink anything....but could this be implantation bleeding or early signs of AF....? I have spotted before my period before but usually it was thicker than this. My period isnt due until May 12th. And if I'm in the wrong thread, I'll see myself out lol....