Most Helpful Girl
This is the worst thing I've heard all day. I am so sorry you have to go through such shit from a girl who has no scruples. The things is, she may not even know herself who the father is, and therefore doesn't want to upset the rest of her pregnancy with this stress. Like a lot of women in this case, they do the old fashioned way of determining by seeing who the baby looks like after birth. Don't think her boyfriend now isn't wondering the same thing. Unfortunately, you are verging on harassment charges if you keep it up, and that's the last thing you want, if you discover the child is yours because it will limit your involvement with the child.
I sincerely hope this child is in fact not yours and you can carry on with your life and forget these two. Just because she's blocked you on Facebook doesn't mean that after the child is born she's not going to put public photos up of the baby for you to see for yourself. But get others' opinions too, because sometimes you might see or not see what you do or don't want to in resemblance. Just make a sock account and either search for her or put her profile's URL in and take a look for updated baby pictures.
I'm not sure if it's an option where you live, but you might also be able to get a court ordered paternity test done afterward. Until then, I'm sorry but it sounds like it's going to be three months of hell waiting for this. For now, you must protect yourself before it gets worse. Good luck.
Most Helpful Guy
The way i see it, if she doesn't want you involved thats a win because she won't look for support from you. So just forget about it dude.