Your aim now is to make sure that he remains safe and that your baby is born free of the virus, both of which are possible with assistance from the correct medical services.
Firstly, you need to make sure you start attending ante-natal services as soon as possible. Inform your health care provider about your status early and start treatment to prevent transmission of the virus to the baby. I always advise on both parents attending the first visit together because that way you can both ask questions (and please ask as many as possible). You need to have a very clear understanding of what to do during your pregnancy and have a plan for delivery that is advised by a qualified health practitioner.
Secondly, your partner needs to use protection and get tested every six months to make sure he remains HIV negative. Medical advice from a trained doctor will help you work through your fears and expectations etc
Thirdly, make sure you eat correctly – fruit and vegetables, a lot of water (guided by your blood pressure of course)and if you are not a vegetarian, stick to white meats like chicken and fish. Avoid fatty foods, too much processed sugars and fizzy drinks.
Finally, this should have been first, laugh, love and live. Be grateful to GOD in all things, trust Him and let Him direct your paths.
All the best!!!