So frustrated

So know that we are TTC after having Ian. And wouldn't you know it i have had 2 normal cycles and now i am just randomly bleeding when ever the heck my body feels like it. Not like spotting but heavy clotting more than period bleeding for 2 days at a time when ever it feel like it. I have no idea when i am Ovulating if im ovulation when to start counting my cycle. It so freaking frustrating.  Everyone is getting pregnant agian and i so want to be part of the group. I cant help but be jelouse. I have a healthy happy little 7 month old  that I love more than life its self and yet here i am feeling horrible for wanting another one and not being happy with what i have. I need to pray for peace with what i have and be happy for that i have been blessed with.