Any advice?

Split up with my partner last month, just found out my iud had moved place and I'm 19 weeks pregnant. It literally fell out so I went to get a new one and well...

This is baby number four, my third was conceived on the pill and my ex was really trying to push me into getting an abortion.

Now he's telling me I HAVE to get an abortion, not sure I can especially so late in the pregnancy. Any advice?