To some extent, yes. I take their feelings into consideration. If an apology is warranted because I might have hurt their feelings, then yes, I will apologize.
I do not think you are getting or understanding the advice given by others when they tell you to stop trying to get pregnant. It means to stop obsessing over it, checking the calendar for when would be the best day to have sex, do not use the basil body temperature method, checking your mucus, tracking your period, etc. it means to have sex for fun again. Do you understand that? It does not mean go back on birth control. It means stop making it your main focus.
If your son is in danger when he is having a tantrum, yes, people should speak up. Things happen in the blink of an eye.
Depression is not something to mess with. It would be a priority to me to get my mental health right and not even consider getting pregnant or buying a home (huge stressors for depression) until I was mentally straight.
I agree with those who state you need to spend less time with your family. I will say that you need to learn how to deal with them. I absolutely LOVE CoCoMom's response about changing diapers!
Find a therapist. I agree with Cheryl - only you are responsible for your happiness. No one else can make you happy, they can add or take away from your happiness, but they cannot make you happy.