Feel so sensitive about everything

I am 25 weeks pregnant and keep bumping heads with myb13 year old son. His behavior is just horrible send over to his dad for days, needed a break every time we argue I ens up with tachycardia.

Working on building up my relationship with my husband again after infedility. I feel I am always on him what's he is doing, texting what time he will be home etc... He has been trying for us.

Sometimes I feel like everything is too much.

On top work is stressful