Trying to Get Pregnant

Hi there.
I'm a 21 year old gal who just got married in july. I went off of birth control (the ring) in the middle or so of june. Now, I haven' t been able to get pregnant yet.
However, my past two periods have been reallllly weird (augusts and septembers). August's period lasted only a couple hours longer than a day, and I only had slight cramping after I had sex.

I just got my september's period today. The period matter was quite strange in texture. It's also very light and when I went to the bathroom about an hour ago and wiped, there was no blood. I have zero cramping and my breasts are not tender at all. Also, the day before my period, I normally have the runs, but not this month.

My periods normally last about 4 days and are very heavy. My last period I didn't need to use a pad or tampon and i'm guessing that I wont have to this time either. I usually was not regular at all, but this period came exactly 4 weeks after my last one did

anyone have any idea what this could be or what's going on? Is it because I recently came off the ring? Am I pregnant and just am having very light periods anyways? I've taken quite a few home pregnancy tests in the past 2 months, but they've all come up negative.

Someone help me.