Welcome, Tina!
First of all, it can take a long time for your cycles to return to normal after being on the pill. Everyone is different.
Second, it is a great time to start charting your cycle by taking your temperature every morning. There are lots of websites out there to tell you how, with charts you can print and use. There is also a highly-recommended book
Taking Charge of Your Fertiltiy which has helped lots of people. (I have not read it, but have heard lots of good things about it).
You can use ovulation predictor kits, but they are expensive, and won't really help much until you have some indication of when you will ovulate.
There are also physical signs of ovulation - ovary pain, egg white cervical mucus. The book should explain what to look for.
I think your doctor was talking about what is left behind on your ovary after you an egg is released. Most of the time those cysts are reabsorbed, but sometimes they stay on the surface, and can be an indication of something called polycystic ovarian syndrome (PCOS). Has an ultrasound technician detected these through ******l ultrasound? If you do find you are having trouble conceiving, or are not ovulating regularly, it could be a cause. Google the symptoms, and see if it is a possibility Keep it in mind to discuss with your doctor if it seems to fit. In some cases, it can be easily treated (as in mine!).
You can talk to your gyno about shots to make you fertile during a certain time. It is possible, but it is VERY expensive and not always covered by insurance. I don't know that a RE would be willing to do it if there is no indication of a problem. But if your charts show that you are not ovulating, or were having a very irregular cycle, your gyno or RE might time some medical intervention to coincide with when Matt will be home. Do you think he would be willing to make a donation that could be tested later to make sure he is in the clear, or maybe a donation or two that could be used while he was away with an IUI.
Wow, I wrote a book. There are lots of women who frequent this thread who have lots more knowledge and experience in this area. They also have lots of hugs, support and baby dust. Lots of luck to you, Tina. I can't think of a better cyber-friend to be a mom.
Denae