Help! I am 5 months pregnant & infected with Rubella(IgG-400 IU/ml) & Cytomegalo (21.0 aU/ml).pLs advice ??

I am married in blood reletion (I am married with my patternal Anty's son). My first doughter is also affected with heart & Eyes problem by birth. What priventive mesures can be taken since MTP (abortion) can not be possible due to delay in detection of the virus i.e.Rubella(IgG-400 IU/ml) & Cytomegalo (21.0 aU/ml). My brother is also deaf by birth. Is there any treatment is available to treat these complications ?? What is the % of affect on fetus. Sonography reports are normal. If . I am going for 3rd pregancy what priventive mesures shoud be taken by me for the normal baby. pls advice me time is running out ??????????