I am sorry to hear about your husband. Your family will be in my thoughts and prayers!
I have 3 children ages 5, 3 and 5 months. When I tried to get pregnant with the 2 older children, I stopped the pill in August and tried in September to get pregnant to no avail..so, we tried again in October and got pregnant. My oldest 2 children both were born in July. When we decided to have another child, we thought the same routine would work. So, I went off the pill in May thinking we would try in June and it wouldn't work and then try again in July with success and have an April baby....We started anticipating my period in June, so we could count the days all that to make sure we timed it right to try to get pregnant...I should have started on Monday...NOTHING...Tuesday...NOTHING...in my back of my mind I thought maybe I was pregnant, but thought that would be QUICK!! I took a test JUST to be sure and a VERY faint line came...I thought maybe something was wrong with the test and I would get my period on Wednesday..NOTHING....When Thursday came still with no period, I started to REALLY think that I was pregnant, so I took another test and the same FAINT line came, so I went to the doctor..They said to call around noon, and it was only about 9am...20 minutes later the nurse called to say that it was positive!! I was SHOCKED!! She asked if this was a good thing and I said yes, just a very QUICK thing..she asked how long we had been trying for and I said that I JUST stopped taking the pill in May..she was SHOCKED that it happened SOO quick....My little girl is 5 months old now and a CUTIE!!
So, good luck..there is hope!!