Hello im rachel ive been on depo prevera for 1 and a half years now and my questions are

1.i am having alot of the symptoms of pregnancy because of the fact that I'm eating a lot I get nauseous in the morning and I also have been very tired lately am I pregnant?

2. I also have very short mood changes I go from happy too sad and I cry at shows that I have never cried before does that mean im pregnant?

3. I've been having alot of discharge more than usual does it have to be a certain color to be pregnant because it's thick I should say it's a eggshell looking color?

4. My boyfriend and I have been having sex I should say twice a week but he and I don't use protection we've been together for a while and he thinks I'm pregnant because he said he how should I say ejaculate a lot meaning it's like a pretty decent amount so he thinks he might have got me pregnant so I need a professional opinion 4 answer I should say because I have taken multiple tests and they say negative but I don't know when I have periods or when they come my last question is when after your done having sex if you don't go pee afterwards is that a way to get pregnant I was told by my OBGYN that if you don't use the bathroom right after sex then that can possibly impregnate me if you could answer my questions for me that would be amazing I am so confused on these tests in people's words I don't know which one to believe but if I am pregnant I want to make sure I know sooner than later thank you so much