DH and I have four wonderful children and we thought we were done

DH and I have four wonderful children and we thought we were done. We have two girls and two boys. We got a surprise late December that I was pregnant! We were looking forward to this unplanned gift. On the 28th of February we suffered a mis carriage. It was upsetting to say the least. We decided to try in early April. I down loaded this app at the recommendation of my friend. Using this and the cheap dollar store opk, I finally got my bfp this morning. Good luck to everyone.