I agree. You're pregnant. Tell your husband but ask him to keep between you two untill you're more comfortable.
I would still tell my husband (which I did when I took my pregnancy test.) But asked him to not go nuts telling anyone until after our first appointment with the OBGYN. I just knew I was preggers because of the way HE was feeling! Ha! But congratulations!
If there are 4 positive test then you are. They couldn't all be false positive.
I was in disbelief until I got my 1st ultrasound at 9 weeks. My boyfriend made me take the test. Lol, and at that time I was supposedly 4 weeks according to this app and other websites. But I just knew my period was going to come I was 6 days late also when I took the test. I think you will be okay because they won't do an ultrasound until about 6-8 weeks. I didn't go to the doctor until I was 8 weeks. I think you should tell him and just let him know not to get overly excited until it's confirmed 100% . Congratulations though!!