Lupus Forum - Treatment Before Definate Diagnosis?

Hi, Im 25 and live in England and had 10 miscarriages (mostly early 1st trimester but one at 19 weeks whilst on birth control pills and other contraception but no pregnancies since ive been actively trying - timing has always been good). I also have Fibromyalgia. Ive now had 2 lupus blood tests come back *borderline positive* what ever that means and i had a 3rd nearly 2 weeks ago (it usually takes 6-8 weeks to get the results of each one so i dont know what thats going to say yet). I dont know if it helps but on the blood test form it said lupus anticoagulant, t-screen and a couple of other things i cant remember.

Im waiting for a laparoscopy and dye test after an u/s showed a hydrosalpinx and they think i have endometriosis due to sharp stabbing pains, cramps, nausea, fatigue and pain all times of the month and on going toilet, slight irregular cycles (i am temping and charting) and my mother had to have a complete hysterectomy due to endo at 28 - 18 years ago) and im currently trying to conceive (20 months).

Basically my question is as im having an operation and im trying to conceive can I start treatment now? I'm waiting for the third test result but if that is whats stopping me from conceiving (or i am conceiving and losing them before i know about it?) and the risk of blood clots/dvt after the operation (my brother had a blood clot on the brain at age 10, had surgery which was successful - just left him with epilepsy from the surgery and died with no known cause at 20 so as you can tell im worried about blood clots) should i start any treatment now or just wait for the blood test results (due back at about the same time as my laparoscopy is booked)?

It was my gynae consultant that asked for the blood test originally last year but after some blood tests was messed up (wrong colour tubes used, then advised to go to the wrong hospital) its taken forever and now its just letters from the hospital advising me to come back in for more tests so i have no one to ask as my gynae wont see me again until my operation.

So basically - would it be best to wait for the third test result and risk a possible dvt/blood clot and more months wasted trying to conceive or should i get treatment now ?
Would treatment without that third result cause any medical issues if previous results have been false positives?

Any info will be gratefully received.