Joan,
calm down and relax, dun worry. just follow the instruction of the nurse and doctor, even when hit CNY, they will adjust for you one, when this mth, your menses come, just call them on the first day and they will count for you, if hit any holidays, they know what to know and will advise you, some of us are in the same boat as you.
was told to take contraceptive on day 2 as my menses is irregular too but told them that I have got some heart problem and was told in the past that cannot take any contraceptive pill, oral type but the nurse said will double checked again and till today, no news yet, no need to worry one lah, just wait for menses to come and call them. if come in jan, call them too, in IVF treatment no such things as can control, can plan or chun chun your menses sure come on which day, only estimate so even out of estimation, the IVF center knows what to do, all you need is to follow instruction and listen to their advise.
you sounded very stressed up
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no worries, everyone go thru the same thing as you and so far so good, if lucrin extention got side effect, i am sure your doctor will advise you or will not ask you to do it, seems like it is okay to extend. When you do IVF, regardless of what stage you are in, lucrin, puregon or after ET, there is no need for you to do anything, just focus on your normal activities and pertaining to IVF treatment just follow instructions, relax, and ask the experts like your doctor if you encounter problems. Food and water wise, just eat moderate and drink plenty of water. Just remember if any restriction that will cause any changes in the result of your IVF, your doctor will have already told you if not, then as per normal lor. Hope these help to calm you.
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take care