first, hugs to you on your latest loss.


as i see it, there are several options:
1. clomid or femara (basically do the same thing although femara is said to have less of a negative effect on the uterine lining)
2. injectibles
3. ivf
since you've already been through a clomid cycle you know what to expect from that - small chance of multiples, helps mature the follicle or follicle(s) so they are better quality, some minor side effects. more REs don't recommend more than 6 cycles on it because of the cumulative effect on the lining. ours will only do 3 before moving to injectibles.
injectibles are a LOT more expensive than clomid or femara, unless you have rockstar insurance that is picking up the tab. i think one dose of follistim is around $120? there is a much bigger chance of multiples and ohss when using these. ethical REs will not allow you to trigger if there are more than 4 follicles but i've seen it before where they have allowed women to trigger with 7 or more if they will agree to selective reduction - not something i believe in but each to their own i guess.
ivf is extremely expensive. there are shared risk programs where you pay $25k and get a refund if there's no baby after 3 cycles. at our RE i think one cycle costs $12k and that doesn't cover all the drugs. there is a better chance of getting pregnant and techniques such as icsi and pgd can be used to ensure the egg gets fertilized and that there are no genetic issues. there is a bigger chance of multiples, again depending on how many embryos your RE is willing to put back. using injectibles always comes with the chance of ohss.
if i were in your shoes, i would want some answers as to why i'd been pregnant twice and m/c both times - there are some very easy blood tests that can be run to see if you have any m/c factors. the common ones are: factor v leiden, mthfr, apa, nk cells. i'm sure your RE knows what i'm talking about and could order the entire panel. fwiw, dp and i both have factor v leiden hetero and she has mthfr A1298C hetero. these are not extremely bad m/c issues but enough that we both took a baby aspirin when ttc and dp had to take extra folic acid. we had no idea we had these issues.
i would also ask (if you don't know already) what mm your lining was prior to insemming.
if you haven't already, get cd3 bloodwork done - fsh, estrogen, lh, prolactin. also have your thyroid tested. many women are hypothyroid and don't know it. what else? progesterone testing? this is done at 7dpo. some REs will go ahead and prescribe progesterone supplements as part of their protocol.
AND so that your RE doesn't rush through the appt before you have a chance to ask any questions make sure to mention at the beginning that you have some questions and write them down before you get there! we did this with our RE and she was happy to answer them.
phew, that was a long reply!! good luck!
g