I just need some advice and support about possible pregnancy?

[Blakesbaby1116]

I am 23 years old and have had one son. He is only a 16 months old and since having him I have only been getting one week off from my period a month. I've switched birth controls 3 times and finally after being fed up with nothing working I stopped using birth control. After a few days of being off the birth control I've had no bleeding at all. This was a month ago if not longer . About 2 weeks after stopping the birth control my body started doing some strange things. I cramped for 3 days straight and had a ton of white thin discharge. The discharge lasted about a week and the cramping continues every now and then. My lower back hurts and feels like maybe I'm not standing right. The pain is in the arch of my back and lower back. My sides tighten and hurt every now and then. My boobs have gotten slightly bigger and are tender on and off. My nipples aren't s Sensitive any less than normal but they are fuller. I've been getting foggy brain and light headed. I'm not eating anything strange but I am getting hungrier than normal. I usually don't eat during the day because it makes me sleepy but for about 2 weeks now my stomach is killing me around lunch time and I have to eat. I've had migraines on and off and temple pain. I've been emotional and last night I got a strange pinching pain beside my belly button to the left. It's not deep almost like on the skin and it burns and then goes away after a few minutes. I've had constant gas and a few episodes of intense heart burn which I never get. I have no nausea what so ever. After the white discharge stopped I experienced no to slight discharge that was cloudy but I constantly felt wet down there. I've been running to the bathroom to check if it's my period starting but still nothing. I get cysts so I've been chalking it up to that but the white discharge has returned for the passed 3 days. I was diagnosed with walking pneumonia yesterday which could have been causing some of my issues but after not t having a regular period for so long I'm on edge with all these new symptoms. Last time I had all of this happen was with my son. I'm concerned I'm pregnant but all of the hpts have been negative. My husband is irritated with me because I won't stop talking about it but I just don't know what to do. I just don't feel like myself and I've been on antibiotics since yesterday morning along with two shots in my hips. I don't know if I'm going crazy or if my body's just freaking out or if it's just me being sick. I guess I really just want some advice and since I'm not getting much support at home maybe some support would be nice. Thanks for reading my super long  paragraph