My SO just told me his co-worker is also TTC and warned him that if we go too much, if I'm pregnant now, the sperm can suffocate the fertilised egg and I can miscarry. I have NEVER heard of this before and I've had one successful pregnancy/delivery. I can safely say we were going at it before, during and after conception and I had zero issues. but given the circumstances, I gotta ask: has anyone heard of this before?? what are YOUR thoughts on the matter?