Trying for 7 years

Me and my hubby have been trying for 7 years to get pregant and the odds are against me I have PCOS and thyroid problem and I feel like I'm starting to give up and it's breaking my heart to think ill never be a mom 7 years is a long time of neg test and missed periods and broken hearted any one out there have an ideal on what I can try I've tryed hormones a few different time but I always get sick and have to have surgery of some sort and I have to get back off of them