If you are pregnant, and now that the bride price negotiation has collapsed, then I can only say that your family and the in-laws you met, neither of the two families regard you and the child in your womb as particularly important. This is because:
From your boyfriend's side: I think he's an extremely irresponsible person. He knows that you are pregnant, so he should quickly find a way to get married, and since he is not able to give you a complete marriage, he should not let you get pregnant. Judging from what you said, it seems that he asked your maiden family to follow all the conditions of their family before they can get married, otherwise it doesn't matter! In fact, judging from your negotiation conditions, there is not much bride price, but he is willing to give up you and the child for these bride price, I personally think that a man like him is unreliable. If he doesn't show up, or if he can't give you a satisfactory answer, you can discuss it with your family and don't hang yourself from his crooked neck tree in the long run.
From the perspective of their family, it is estimated that they do not approve of you as a daughter-in-law from the bottom of their hearts. Let's imagine that if this matter is put on you, for the sake of your son, for your daughter-in-law and grandson, no matter how much money you pay, your family may try their best to find a way, not to mention that this money is not much. The problem now is whether the two sides can reach an agreement, or to be more specific, the question of bowing to the other party, but they just refuse to bow their heads for the sake of face, which means that they don't value you at all in their hearts.
From your family's point of view, they may not approve of your boyfriend from the bottom of their hearts. If they approve of you as a boyfriend, many parents will give in for their children, but your family doesn't.
Of course, I don't think the parents are responsible for all of this, it's you and your boyfriend. Although many parents are not as feudal as in the past, they are still resistant to unmarried pregnancy, especially if you are still students. Therefore, I think that as a girl, you must have self-esteem and self-love, and learn to protect yourself, so that in the future, your mother's family will be able to hold up her head in front of others, speak confidently, and be a good person in front of her mother-in-law's family. Do you think that's the reason?