First of all, may Allah remove all your difficulties, provide a way out for you from this difficulty, and make things easier for you.
I will answer in points In sha Allah, as per Islam, perhaps you will benefit from it.
1. This person doesn't seem very Muslim to me, if he is, then he is ignorant. In Islam, a person is not allowed to get an abortion unless there is a valid reason not having to do with finances, such as rape, if the birth is a threat to the mothers life, if the fetus does not even look like a fetus (i.e. genetic defects) are some of the reasons I know. However, worrying about finances or time or family approval are all not reasons to get an abortion as Allah states:
And do not kill your children for fear of poverty. We provide for them and for you. Indeed, their killing is ever a great sin. (17:31 - Noble Quran)
and if you do get an abortion, then you will have a big sin on your record, and every sin is punished in this life with hardship, and in the hereafter as well. and your bf would also get the sin because he recommended it to you:
Whoever intercedes for a good cause will have a reward therefrom; and whoever intercedes for an evil cause will have a burden therefrom. And ever is Allah , over all things, a Keeper. (4:85 - Noble Quran)
So you should show your bf this and tell him to fear Allah and man up, and the child is his responsibility too to raise upon the faith of Allah and to help you through it all.
2. As per Islam, dating is also forbidden because Allah says in the Quran not to come near zina; further as you are seeing now, no one takes it seriously, it is not a real commitment. If the guy is not ready to marry you then why would it be okay for him to sleep with you? I can only think of one good thing that comes from that, a good feeling, I'll give you that, you get a good temporary feeling, but I can think of about a hundred bad things that come from that too, such as unplanned pregnancy.
So he has to repent for fornication which is punished double on the day of judgment if not repented for (Quran verses 25:68-70) and stop this relationship immediately.
Further he is not allowed to marry you unless you become Muslim, since in Islam, a Muslim man can only marry a Muslim woman or a chaste Christian/Jewish woman under certain conditions such as the child being raised Muslim, the marriage being done Islamically, the wife not spreading her disbelief to the family, etc. If you become Muslim, you will regain your chastity as when one becomes Muslim all their previous sins are wiped away like a new born baby, and all your good deeds will remain.
Any type of marriage to you would not be accepted by Allah unless you become Muslim as per Islam and this is mentioned in the Quran, so these are things you should be mindful of, if he is just using you for pleasure for example, and I am telling you these things to increase you in knowledge not any other reason.
3. I don't recommend you get an abortion, tell him NO and you're keeping it and he has to help too. Perhaps Allah will bring about great good from this baby of yours, perhaps this baby will be of much benefit to you in the future, and do not fear poverty, as Allah will surely sustain your offspring until its appointed time of death, and Allah has control over all wealth.
You should put together a plan on how you will proceed. If you're considering Islam, and become Muslim, then I wouldn't tell anyone until you marry him, if he is willing, because in Islam we're not allowed to reveal sins, and if you mention being pregnant while being married, then it will not appear as such. Although I wouldn't recommend even marrying this Muslim man unless he himself reforms into a better Muslim, as Prophet Muhammad (s) said marry based on faith (in Allah) and good character, both necessary for a lasting marriage.
If you accept that this was not going to be avoided, that this is a test from God, and that you will be rewarded for it if you are patient, then you will not worry so much. You should ask God to protect you from regret and worry, and to help you in this. AS per Islam, Patience and fasting are the two deeds in Islam that Allah rewards without measure (and Allah knows best what his reward is, there are 7 h eavens in Islam with varying degrees, the higher you go the more enjoyable it will be, so you want to earn much), and any difficulty you face in life wipes away your sins and spares you from a greater punishment in the hereafter.
So these concepts in Islam may help you if you look at it from this point of view, that God chose you for this hardship because he knew you could handle it and wants you to turn to him.
So with that I would invite you to become Muslim, to read the Noble Quran along with Ibn Kathir's Tafsir interpretation which can be found 0nline, it will calm you down, as Allah says the recitation of Quran is a mercy for mankind and you will find rest in it.
if you want to keep in touch you can email me from my profile (you need to turn on email notifications in your preferences for it to work),
may Allah guide you Islam the religion of truth, justice, and mercy, and the only religion God will ever accept.