I suspect your friend has PCOS (like me) - irregular periods and irregular ovulation, hence her periods can even stop. So even if she relaxes completely, stop work to stay at home to shake leg, don't think about TTC at all, zero stress in life -- it still may not work for her coz the body is stubborn. I'm humbly speaking from personal experience. The "must try to relax" method did not work for me at all. I was nagged non-stop to relax and it was quite frustrating. So don't overdo it to her, yeah? Of course she should still relax sufficiently to get her periods back (otherwise no hope at all even with IVF) but telling her repeatedly to relax, she may see it as nagging which may stress her out more! Just my humble opinion...
The fact that she has had an ectopic pregnancy means she has no problems conceiving, just that the embryo implanted in the wrong place. TCM (professional TCM physician) can help to improve the condition of the womb to help with proper implantation (instead of the embryo implanting where it should not implant leading to ectopic). IVF will also help if the embryo is transferred properly to the uterus and does not travel to another place, but bear in mind a number of IVF patients still have ectopic, the risk is not eliminated.
If she or her husband is a Singapore PR, she can still enjoy partial subsidies from government on IVF in public hospitals. If not, I'm sure IVF in M'sia is a thriving business, but as what
@PTB7674 said, must be prepared to travel often to M'sia coz IVF is time-consuming and may not work the first time.