How do I know if I'm pregnant before my next...

Dear Customer
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Can you confirm the pregnancy before the date of next period ?
use you can , but only there is one test to confirm which is :
- pregnancy hormone levels in blood ( which is done in OBGYN clinic )
Other pregnancy tests and its suitable time :
1. home pregnancy test ( first week of next period )
2. ultrasound test ( second week of period ) 
Early pregnancy signs :
1. delayed period 
2. headache 
3. frequant urination or urge to urinate 
4. changes in breast shape and size and may have some pain 
5. increase vigainal discharge 
6. morning sickness
7. vomiting and abodiminal discomfort 
8. constipation 
9. change in mood stutus 
Our advice :
do the pregnancy tests as mentioned above , and consult an OBGYN doctor once you start your next period time regardless if you have positive pregnancy test or got delayed period 
You can also ask our other certified experts in various fields such as: Nutritionists, Lawyers, IT Experts, Therapists, Mechanics, Doctors, Handymen, and more.
Kind Regards