Second IVF different protocol?

Chrissy • TTC #2. 5 failed IUIs + 2 IVF. First born got pregnant on first IUI.
Hi, 
Any "low responders" change protocol and have a better result the next time or still about the same? Got two good embies out of first cycle (BFN) so have to start over. Also for those who have done multiple cycles, did you change protocols or keep doing the same?