@red.koi.junie, I agree with skyangel too. If suspect medication affects SA, should do one more SA at appropriate time after stopping meds. If after all tests, SA indicates sub optimal sperm quality, the fact is doing ICSI instead of iui will give you better chances. When my hubby's sperms showed improvement over the course of 2 fresh cycles and doc suggested can try iui, we did another SA 3 months after the last SA result to confirm. We realised the sperm quality was not consistently good and morphology was still 0% very likely because of his high blood pressure medication and partly his age though there was improvement in concentration & motility. As such, we went on to next fresh instead of trying IUI.
With cryo preservation as today's freezing method, studies showed that thawed frozen embryos are as good as they are fresh and their implantation and live birth success rates are not compromised. A thawed frozen embryo that does not survive is usually more due to the inherent quality issue, ie chromosome abnormality than due to thawing process.
I have done both fresh and frozen cycles. All with excellent or good grade embryos. The only difference was the last frozen cycle which gave me my bfp was that I had good quantity of frozen day 2 embryos which allowed us to try culturing to day 5 blastocysts. I had 2 fair grade blastocysts (4BC and an early blastocyst) transferred and bfp with singleton.
I once asked Dr Loh if fresh or frozen better success rate. He said each has its own advantages and you can't really compare fairly. There are more cases of fresh transfers partly because many patients also don't have frozen embryos. If a patient has good quality frozen embryos, there is always a chance that you strike a viable life birth with a normal embryo in a frozen cycle. Regardless fresh or frozen cycle, if there are no known health issues in the female affecting implantation or the womb from sustaining a pregnancy, the key to bfp is having a chromosomally normal embryo.
Regarding the choice of Doctor, I do believe in having rapport and chemistry with your doctor before you start the process. My hubby & I may have a good experience at TMC, have good chemistry with Dr Loh and succeeded with him, but this may not mean the same with everyone coz human perceptions and feelings are involved. If your hubby or yourself already feel reservations with Dr Teo this round, it will be worthwhile taking time to seek 2nd opinion and find someone both of you will comfortable with. There is too much at stake and too much investment (financial, emotional, physical & mental, time) and it warrants serious consideration to make a decision that ultimately you and your hubby can agree and feel comfortable together.