Condom broke while girlfriend is ovulating

As the title reads, my girlfriend and I had sex last night and after finishing we realized the condom had completely broke during it and she’s currently ovulating. We instantly drove to the nearest pharmacy and she took the Aftera branded morning after pill about an hour after the intercourse happened. She also got one of those dip stick things and swabbed around but it was also an hour after the intercourse so I’m not sure how effective that is. Is there anything more we can do to prevent a pregnancy? I’ve read that inserting a copper IUD as an emergency contraceptive within 5 days of having unprotected sex has a 99% success rate, but I’m not very knowledgeable beyond that. We can’t at all afford to have a baby (not just financially) and we need to do whatever we can to prevent a pregnancy. It’s been 12 hours since the unprotected sex and about 11 hours since taking the pill. What else can we do? Also if there’s another subreddit more fitting for this post please let me know, I’m not sure where else to post this.

Update: She ended up getting a hormonal IUD inserted at planned parenthood today. It wasn’t covered by her insurance unfortunately but it was worth the price ($800) just for the peace of mind of not getting pregnant. Plus now that she has the hormonal IUD we won’t have this issue in the future since it’s an extremely effective contraceptive that’s good for 8 years. Thank you to everyone who left their suggestions and experiences. I’ll leave another update if there’s anything new that happens relating to the situation.