Feeling guilty

Had a miscarriage in June and now I am 5 weeks pregnant. We have 2 kids and I thought I really did want to have another, we werent preventing pregnancy but avoiding and <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> and I still end up pregnant. I feel terrible for my children and husband that I am pregnant and I just want this guilt to go away. I dont know if it's because its still fresh from the miscarriage why I am feeling like this or just early pregnancy being emotional.