I am very sorry for your losses. I might add though sometimes at 7 weeks a heartbeat can not be found, until 8 weeks. This miscarriage (if you do have one) may or may not be related to your blood pressure problem, as many as 50% of pregnancies end in miscarriage, sometimes the women doesn't even know she is pregnant yet
You should be ab;e to have a child, but your pregnancy may not be "normal" you would be watched very carefully for high blood pressure happening again, there are some meds you can take, and often bedrest is prescribed. They may also take the baby as early as 28 weeks if your life or the baby is at risk.
You need to consult with your Dr, that will be the only way to clear your doubt.
why dont u start LOPRIN..its recommended for high bp as it doesnt let blood to clot n thus controls the bp.certain tests also req.i also hv the same prob.in preg i go on loprin till the 9th month.consult ur doc abt it.