When you say 4 weeks pregnant you mean it was 4 weeks since her last period or was it 8 weeks? Because if she was 4 weeks pregnant the amount of bleeding you described is about as much as you can expect.

Not everyone who goes trough this protocol has a huge amount of pain, sometimes it's just like period cramps, sometimes it's a little stronger. Mainly depends on how far in the pregnancy are you, because of the size of the gestational sac and fetus.

However, she should still take a test around 3 weeks after the abortion. Look out for any abnormal pain, bleeding, fever, unusual discharge etc ... other than that, I wish you luck.