What are your thoughts.

Hi all. I am about five months postpartum. I currently pump for my son as he hated to latch. I've missed my period this month and had some slight brown spotting on the 21st, 22nd, and 23rd. I keep testing but it's negative. I've noticed that my supply has almost cut in half the last few days. Do you think I could be? We had a couple of oops moments this last two months.

I've had other symptoms too, but they could be either pms or pregnancy. The only thing that still worries me is that my cervix is high and soft.