I was doing some research yesterday and from what I have gleaned now:
-30% of the UK population are immune to toxo
-The risk to unborn babies depends on the stage of pregnancy. If you catch (note, actually catch it) toxo in the 1st trimester there is a 15% chance of transmitting it to the baby, 30% in the 2nd trimester and 60% in the 3rd.
-If you transmit it to the baby in the first trimester there is a high chance of MC
-If infected during the first or second trimester the baby may be born with hydrocephalus (water on the brain), brain damage, epilepsy, deafness, blindness or growth problems. The developmental problems may be so severe that the pregnancy ends in a stillbirth.
-If you transmit it to the baby in 3rd trimester there may not be such severe problems. But problems, particularly with vision, may become apparent later in life.
The general internet info is that some experts recommend waiting 6 months from an infection because there have been a few cases where women have had toxo around or shortly before conception and transmitted it to the baby.
Toxo has a 5-23 day incubation period. I am thinking back now: Bobbie's scan was 9 weeks ago today. She was about 15 weeks in size but 20 weeks in age, so it looks like things were going wrong from 14-15 weeks (perfect at 12) so presumably I caught toxo around 12-13 weeks and it finished incubating and started doing damage at about 14 weeks. So that is 15 weeks ago. But it was still strongly detected at the birth tests (20 weeks)
Current speck will only have implanted 2 days ago.
My concern is that the infection could still be active, but I suspect it must have been largely beaten down by now? I will act as if I am not immune until I know otherwise.
I'll see if the receptionist at the surgery is allowed to book me a self-requested blood test or if I have to see the GP first to "authorise" it.
The drugs they give are antibiotics called spiramycin, but I need to do some digging and see what they can do to a baby in the first trimester.
My hunch is that the risk is small. And if the baby does get it it's most likely to be a very early MC. And an early MC could be due to anything so nothing to beat myself up over, no?