Hi Doctor I Went Through Ivf In September And My

Hi doctor i went through ivf in september and my doctor suggested to take susten 400 mg thrice a day. I have been taking it regularly. I am pregnant with twins of 8 weeks. There was shortage of susten 400 mg in market yesterday so my doctor suggested to take susten 200 two tablets instead of 400 at once. Which means I will need to take susten 200mg 6 times a day (as original dose was 400 mg thrice a day) Do you you think this is ok?