First and foremost, unlike sa China or other countries, abortion is illegal in the Philippines as you already know. So the father is basically asking you to commit a crime. You might want to consider giving up the baby for adoption instead.
Magdasal po mang maigi para maguide nang maayos in your decision. Pero regardless of your decision, I advise you against marrying the father, he's a huge red flag.
Ms. Xiena