First of all, wow, you are pregnant! Having a child is a huge step and transition in life. How are you feeling about all of it? When you posted when you found out just a few days ago, you said you were feeling really scared. :hug: It is a big step in life, and it will change you as a person to raise a child. But, you keep your head on straight and keep your focus on the big picture, you will make it through this. You can be a great mom like many others here, many of whom have been there in this scary and trying place. (I have not ever had my own child, so I can't say I know what it is like. I can only make observations from the outside.)
Threatening to release sex tapes is possible extortion and to make other threats against you or a child or your family is illegal in most countries. I don't know the laws in Ukraine very well, but I'm pretty sure there are laws against this based on my cursory review of what I could find online. So if he is making such threats, that is really wrong. Nothing you do makes treating you abusively ok, and Safety needs to come first.
So put down the keyboard and pick up the phone and call the authorities. Or reach out online for advice on how to take action about the threats.
Once you have outside help to stay safe, then work on communication skills with recent ex-boyfriends who are probably just as shit scared about becoming a parent just as much as you are, and clearly acting out in an abusive way.
You have the opportunity to be the most adult person in this circumstance - a skill that you have in you, and that you can do.
Call for the authorities to help (if they can) to prosecute him. Put up strong boundaries so that he can't continue to contact you. He is the father, but he doesn't have any legal right to have contact with you or your family in ways that are threatening or abusive.
You are being a defensive/protective mamma bear, but against the wrong "enemy" - fellow sufferers on the forum - and pushing away people who are on your side. You need to pour this protective/defensive energy into getting outside help to deal with him, the real threat.
If a post on the thread isn't helpful, ignore it. Wait for the input that is helpful to you. Consider the rest of the input that might hard to read with care, as it comes from fellow sufferers who really do care about you and for this new little one a lot. If the feedback isn't helpful, disregard it. Use the ignore setting if needed, and get back to finding what does help you and will help you be the kind of mom you want to be for this new little one and how to be safe from threats of new trauma or actual new trauma from this ex-boyfriend.