TTC; pregnancy test???

Harmony • I`m married to my best friend! I have 1 child who is 13 from a previous relationship. Hubby and I have been TTC for 7 yr
So Hubby and I have been TTC for 7 years now. We did manage to get pregnant once but it ended in a miscarriage? :( 
Anyways my periods have been very normal for a little over a year now! Even when I had gallbladder surgery last November the docs told me it could throw my cycle off... And it didn't it came on time! 
Anyways I'm now 1 week late (as of today) I've been using Glow for 4 months and it's done a great job at tracking my periods and has been very accurate. So as I said I'm 1 weeks late as of today? I took a Preg Test about 3 days ago. I sent hubby to get it and he got it from the 99€ store (it was that or the liquor store; he said he thought he had a better chance at the 99€ store) now I've heard some people say the Preg test they sell at the 99€ stores or dollar stores are fine and pretty much accurate. But I've heard others say they are never to be trusted? The one I took was where you pee in a cup and it comes with a little dropper type thing and than you drop it onto the Preg test? It was negative? But still no period (the Preg test was taken 3 days ago) and now there are few other things that I think are possible signs of Pregnancy??? My breast are discharging a sticky type substance that has never happened before, they also look bigger and firmer? Also I'm very tired which is not all that new I have insomnia but lately the tiredness is just all the time... I can't make it through the day without taking a nap? Also my appetite has grown? I very rarely eat breakfast just a cup of coffee and if I do eat breakfast it's likes a muffin or bagel? But I've been waking up craving eggs, and hash browns.... And beacon... Also one weird thing I'm the type of person who will eat veggies because they're good for you... I don't enjoy them but eat them... But I've been craving veggies a lot! And veggies I've never even liked or would never eat before? 
When should I take another Preg test and which brands seem to be the best?