I think my husband is controlling me?

I'm beginning to think my husband is a bit of a threat. I'm 6 months pregnant and started noticing some odd behaviour. I think I may be in an emotionally abusive relationship. ( he has never done anything physical)

What are signs I should look out for or behaviour that is wrong?

I think my judgement is a bit clouded by pregnancy hormones and doubt and over sensitivity so I could be wrong.