Yes, I was on lovenox with no clotting disorder, as have been handfuls of other posters (especially those who have delivered in the 20-26 wk timeframe with IUGR.) ( riehlism....something like that, sorry if I messed up her screenname) , Ashley (nolansmom maybe? She hasn't been on here in forever), several others. But it does vary widely by MFM and don't be afraid to get another opinion from another mfm. I met with 2. One said yes, absolutely lovenox.The other said absolutely not. (A friend of mine who had severe pre-e 2x and delivery before 30 wks, recently met with a popular mfm in our area that I have not met with. He planned to put her on lovenox regardless of her clotting tests but told her he'd feel more confident it would help if she had a clotting disorder. She did have mthfr which a lot of mfm's don't treat with lovenox anymore.)I didn't want to later regret not doing it,I have enough regrets from my 1st preg, so I went with the lovenox plan, it worked out for us. I'm on it again for our 3rd preg.Whether it made a difference or not is unknown, certainly we have had plenty of members not on it who have healthy pregnancies, my MFM is of the opinion that there are more clotting issues/disorders than they have tests for and just because they didn't find it with the tests doesn't mean there isn't one.
(Osteoporosis is a risk, they have me increase calcium by 1000 mg when I am on lovenox, and this time she expects me to be off it by 20 or 24 wks, once the placenta is totally established and everything looking good, I will stop. I stopped last time about 28 wks, we were more paranoid and I had blood flow notching.)
Personally, I'd probably try to talk to another mfm if I were you. The 18 month thing seems pretty excessive.
Me (29) DH (30)
#1-Olivia Caetlyn-9-28-09-9-28-09, 23+2 wks, emergency classic c-section, class I HELLP, IUGR
#2- Lucas Oliver (rainbow baby)- April 2011, 36+2 wks, HELLP and pre-e free! (lovenox and LDA pregnancy)
#3-Matthew, late October 2012...mostly normal, 37 wks, (lovenox and LDA again)
My blog: http://www.butterflies-and-rainbows.blogspot.com/