I think you should actually stop worrying about if he loves you, and the amount or truthfulness of the love, and start focusing on how he treats you - which is abusively. He probably did, or still does, have some version of love for you, but that means ZERO when he treats you this way. If he loves you, it doesn't mean you should tolerate this. And it certainly doesn't mean, above all things, that love will magically make this all get better somehow.
Ask yourself this - you love him: do you treat HIM this way? Do. The other people you know treat the people they love the way he treats you? No, you don't and they don't. And don't try and find excuses or blame yourself, because the choice to treat you this way is all his, and the responsibility yo treat you like this is all his. You don't treat people you love the way he treats you, and you know that.
You have certainly been deluding yourself that this is what love is,and that you should have to put up with this treatment. You also doubt yourself because he is fucking with your head.
The stuff he says about going on makes no sense and you know it. The way he makes you feel confused about you getting it wrong is, again, totally classic abuse. It's like they follow the rules in a special handbook! He does it to get you so hung up in doubting and blaming yourself that you can't see the truth of his shittiness towards you. People talk about getting caught up in the FOG of abuse: Fear, Obligation and Guilt. Sound familiar?
If he felt guilty about going out all night, he wouldn't go, or he'd arrange for you two to go out together. And the way he insists on going out on your nights with your friends is classic controlling abuse too. It makes no sense to say he feels guilty about going out but that he 'must have his freedom' (wtf does that mean anyway? He means "you are not allowed any rights in this relationship"). You known it makes no sense, and that's why it confuses you - it IS confusing! And you don't have trust issues, you have an utterly untrustworthy husband, that's all.
Also: just because he tells you something about yourself, doesn't make it true. He's not God.
Just because his mother thought years ago that he loved you, doesn't mean she is right. Not only is she going to want to think the best of her son, she doesn't actually know what goes on when it's just the two of you AND she herself was the victim of abuse, and will have spent years minimising and denying and excusing it, so she not a reliable person to get true reassurance from on this issue.
You can get cramping for various reasons all throughout preganancy, it doesn't mean something bad is going to happen. But go to the Drs anyway, and also ask them how someone gets chlamydia in the eye. They will tell you 100% that you can only get it via sex. Actually, it's usually caight via anal or oral sex. Think about that.