OP, that's heartbreaking, I'm so sorry.
Hopefully my story helps...
4 miscarriages over 4 years for DH and I, all under 9 weeks gestation. Each one was a bit more physically gruelling than the last, and with the 9 week one ended up having a D&C afterwards.
Doctors never found out why, and recommended we try IVF. Depending on your age etc people's hormone drugs etc are different, but we had a pretty light round drug wise.
Pleased to say it went well first go, and we know how lucky we are to have had it all work the first time. Pregnancy was tough had Hyperemises Gravidarum and cracking heartburn, followed by a 2.5 day labour and a 7 day hospital stay with my DD in Neonatal.
But, we have a lovely baby girl now, and I am super glad we fought hard to get here.
I'm sure you aren't short of advice, but if it helps...
If you really want them keep trying but do make sure you have the right support network around you, its such a rollercoaster.
Find things to take your mind off getting pregnant as hard as that is, if you can get out and about for walks, enjoy the sunshine and other things, it helps. There is a lot to be said about stress and eliminating it, and its effects on mental health.
Make time for your relationship with your partner. Its easy to let that go when you're so focused on getting pregnant. Don't forget each other and that you're both more than baby makers.
Newborns are tough! I hope do you have children and when you do, remember its ok to struggle. A lot of pressure on women who have babies to "live the dream", but its so so hard and its ok to struggle and to be honest, feel like you made a big mistake occasionally.
All the best OP xx