Pregnancy anxiety

I am almost 20 weeks and I have been super paranoid my entire pregnancy at first my husband understood as I’ve suffered a mc & a still birth,

As time went on it came very overwhelming trying too protect my belly from our adventurous toddler,

Recently my husband has expressed how my worries are taking a toll on our relationship & immediately I could see how, I just can’t turn the switch off. If I pick my son up I’m panicking, if he rolls and hits my belly I’m panicking, if my husband wants too rub my belly I’m loosing all marbles. I really try too not worry but it is so hard!