Ex GF threatens to sue

Hello, I have been receiving messages from my ex gf lately implying that she wants to file a case against me since she was a minor (17 yo) when I got her pregnant. I was 20 yo back then and we lived together in her parent's house when she got pregnant. We only got separated after almost 2 years when I found out that she's having an affair and she pushed me away after being confronted.
Moreover, she keeps on saying things like I owe her everything that I have and if she will pursue the case she will have my departure and all my papers on hold, (Im a seafarer by the way).
She have also mentioned that I will owe her a big amount of money, in case.
Im currently 26 yo and it all happened 5 yrs ago.
I just need to know under what case will my situation fall and I appreciate your advise regarding this.

Are you giving your child enough financial support? coz if not, she has all the right to sue you not just because you got her pregnant at 17, which could fall under Statutory rape, but also about issues with child support. The best thing you could do is to talk to her and her family in private.

I'm not a lawyer.

we have already agreed and settled for child support.
By the way, from what i know, statutory rape is for those under 12 yrs of age.
I appreciate your reply.

sorry about the statutory rape.. I read the 17 years old as 11 haha