Excited and scared

Got my bfp today! I'm excited but cautious and scared to believe it. I had a chemical in march at exactly 5 weeks. My tests strips never got dark but everything was positive and my symptoms started but ended quickly. Now my test is darker and I have symptoms that come and go. I didn't believe getting pregnant with my husband was possible. He has diabetes and Ed along with other health complications. Hoping and praying GOD allows me to keep this one