There are some medications that some are more prone to be allergic to when it occurs in the family. My grandpa is allergic to penicillin and 2 of my aunt's are too and so are their kids. It very much can be in the family. But I doubt that there would be an effect to your unborn baby. But I'd ask for a different family of antibiotics if you our any of your Dr seem concerned. Also talk to your pharmacist they are a wealth of knowledge and know more about it since they work with medications all day.
They can give you a different antibiotic if you are worried. They give others that are allergic to amox\pcn a different abx. Just ask whomever us writing your prescription.
Im a dental assistant and I would think ur dentist would want u to do what ur cardiac specialist advises. Yes there r new studies due to premedication before dental treatments but u still listen to the specialists over anything. My Dr that I work for always talks to the specialists before treatment and go off of what they say. I'm sorry so many ppl r telling u diff things. That makes it really confusing. Just tell ur dentist that ur specialist advises u still take it and give them their number and they can come up with what's best for u. Good luck
I have no clue the answer to this but maybe asking your obgyn and your pcp what would happen if your daughter was infact allergic. What would the situation look like. I had to have some dental work a few months ago and my dentist wanted to use epinephrine to help numb the area and my obgyn said NO WAY at first due to the risk it poses to the baby. Well I had my obgyn call my dentist and they discussed using a smaller amount of it and changing up the sequence of medications to fit me for the procedure and it went just fine!